Carl's Jr. California Classic Copycat Recipe

To make a Carl’s Jr. California Classic copycat at home, grill two thin 80/20 beef patties of about 60–70 g (2.1–2.5 oz) each over very high heat. Melt American cheese on them and stack them on a toasted bun with soft grilled onions, Thousand Island sauce, crisp lettuce and tomato. This California Classic Double Cheeseburger recipe makes 2 burgers in about 50 minutes, including 20 minutes of chilling. It works on a ridged cast-iron grill pan or a barbecue, so you get the chain’s charbroiled taste without a restaurant grill.

A homemade reproduction, not the official recipe. Carl’s Jr. publishes the build of the California Classic, but not its patty weight, its seasoning, its onion method or its sauce formula. I rebuilt it from the 2016 launch announcement, the current US menu and two independent tastings, and I flag every estimate below. Reference market: United States, sources checked on November 11, 2026.

What’s on a Carl’s Jr. California Classic?

A Carl’s Jr. California Classic is a double cheeseburger: two charbroiled beef patties, American cheese, grilled onions, Thousand Island sauce, lettuce and tomato on a bun. That is the official build Carl’s Jr. announced when it launched the burger in May 2016 (La Opinion / LatinoWire; The Impulsive Buy). It is still on the official US menu under its full name, California Classic Double Cheeseburger (Carl’s Jr.).

Some details have moved since 2016, and the official menu page doesn’t spell them out. Here is what each source says, and what I chose.

California Classic build, 2016 vs 2025: 2 patties, 2 slices of American cheese then 1, grilled onions, Thousand Island sauce, lettuce, tomato and a plain bun, with the copycat choice for each item (patty weight 60–70 g / 2.1–2.5 oz is an estimate). Sources: La Opinion/LatinoWire, The Impulsive Buy, Brand Eating. Alt: table comparing the Carl’s Jr. California Classic’s ingredients in 2016, in 2025 and in the copycat recipe (Table: Burger Breton, data from Brand Eating (2016, 2025), The Impulsive Buy and La Opinion/LatinoWire; original table, no license required)

How much does a California Classic patty weigh?

Carl’s Jr. doesn’t publish the weight of the California Classic patties. The only figure the chain gives is for the bigger Cali XL: two 3.5 oz (about 99 g) raw patties (The National Provisioner). Brand Eating says the California Classic patties are smaller than that (Brand Eating). So I use 60–70 g (2.1–2.5 oz) of raw beef per patty. Treat it as a homemade estimate, not a spec.

Thousand Island or Classic Sauce?

The 2016 launch announcement says Thousand Island; the Cali XL and some unofficial menu sites say “Classic Sauce”. Carl’s Jr. hasn’t published the Classic Sauce recipe, and I couldn’t confirm whether it’s the same sauce under a new name. I stick with Thousand Island, because that’s the sauce the brand built the burger’s story on.

Ingredients for 2 California Classic copycats

For 2 California Classic copycats you need about 260 g (9 oz) of 80/20 ground beef, American cheese, one onion, two plain buns, a quick Thousand Island sauce, lettuce and tomato. The weights are my estimates, not Carl’s Jr.’s.

Burgers

• 240–280 g (8.5–10 oz) 80/20 ground beef, split into 4 portions of 60–70 g (2.1–2.5 oz)
• Fine salt and ground black pepper
• 2 to 4 slices American cheese (1 per burger for the 2025 build, 2 for the 2016 build)
• 2 plain hamburger buns
• 1 medium yellow onion (about 150 g / 5 oz), thinly sliced
• 1 tbsp butter
• 2 to 4 iceberg lettuce leaves
• 4 thin tomato slices

Thousand Island sauce

• 3 tbsp mayonnaise
• 1 tbsp ketchup
• 1 tbsp sweet pickle relish
• ½ tsp white vinegar

Equipment: a ridged cast-iron grill pan or a barbecue, a skillet for the onions, parchment paper, a thin spatula and an instant-read thermometer.

Step by step: the California Classic Double Cheeseburger copycat

Make the sauce, chill the thin patties, grill the onions slowly, then grill the patties hard and fast and build the burger. Count about 50 minutes in total: 15 minutes of prep, 20 minutes of chilling and 15 minutes of cooking.

1. Mix the Thousand Island sauce

Stir 3 tbsp mayonnaise, 1 tbsp ketchup, 1 tbsp sweet pickle relish and ½ tsp white vinegar until smooth. Cover and keep it in the fridge while you prepare the rest. Half a teaspoon of vinegar sounds like nothing. It isn’t: it cuts through two patties and two slices of cheese.

2. Shape and chill the patties

Divide the beef into 4 portions of 60–70 g (2.1–2.5 oz). Press each between parchment into a thin round about 11.5 cm (4½ in) wide, a little wider than the bun. Freeze them for 20 minutes. Brand Eating found the original patties narrower than the bun (Brand Eating), so I size mine up to fill every bite.

3. Grill the onions

Melt 1 tbsp butter in a skillet over medium heat, add the sliced onion with a pinch of salt and cook for 10–12 minutes, stirring often, until soft and golden. Keep them warm on low. Brand Eating found the chain’s onions barely caramelized in 2016. I push mine further, because the grilled onions are what the brand itself says makes this burger special.

Step 3: thinly sliced yellow onions at the start of cooking in a stainless skillet, before they soften and turn golden over 10–12 minutes. Illustrative photo, not taken during this recipe. Alt: sliced onions starting to cook in a skillet for California Classic copycat grilled onions (Photo: ccbarr, CC BY-SA 2.0, https://www.flickr.com/photos/30458688@N00/34528394490 (1024×576; loading=lazy, decoding=async))

4. Toast the buns

Toast the cut sides of the buns on the grill pan over medium heat for about 1 minute, until lightly golden, then set them aside. Do it before the pan gets very hot, or the bread scorches. Toasting also fixes the dry crumb Brand Eating noted on the original bun.

5. Grill the patties

Heat the ridged cast-iron grill pan over high heat for at least 5 minutes, until it smokes lightly, or set the barbecue up for direct high heat. Season the cold patties with salt and pepper. Grill 2–3 minutes without moving them, flip once and grill 1½–2 minutes more, until the center reaches 160 °F (71 °C), the safe minimum for ground beef (FoodSafety.gov). Don’t cut the preheat short. On my first test, after two minutes on the heat, the patties stuck and steamed grey instead of marking.

Step 5, barbecue option: four raw beef patties placed over direct heat on a charcoal kettle grill. These patties are thicker than the copycat’s 60–70 g (2.1–2.5 oz) ones, so grill yours only a few minutes and check for 160 °F (71 °C) in the center. Illustrative photo. Alt: raw beef patties on a charcoal barbecue grate over direct heat for charbroiled burgers (Photo: Stevie Rocco, CC BY 2.0, https://www.flickr.com/photos/98336893@N00/3583276044 (1024×768; loading=lazy, decoding=async))

6. Melt the cheese

Lay a slice of American cheese on each patty right after the flip so it melts during the last minute or two. For the 2025 build, cheese only one patty per burger; for the 2016 build, cheese both. On a grill pan, cover with a lid or a metal bowl for 20 seconds if the corners stay stiff.

7. Assemble the burger

Spread 1 tbsp sauce on the bottom bun, add a cheesy patty, half the grilled onions and the second patty. Top with 2 tomato slices and the lettuce, spread a little sauce on the top bun and close. Carl’s Jr. doesn’t publish its build order, so this one is mine: the onions sit between the hot patties so they stay warm, and the lettuce stays high and crisp.

Homemade Thousand Island sauce for burgers

A homemade Thousand Island sauce for burgers is mostly mayonnaise, loosened with ketchup and sweetened with pickle relish, with a splash of vinegar for bite. My ratio is 3 parts mayo to 1 part ketchup and 1 part sweet relish. That’s my approximation, not Carl’s Jr.’s formula, which has never been published.

It belongs to the same family of mayo-and-relish sauces as the special sauce in our Double Big Jack recipe, so you can swap one for the other in a pinch. It’s a different sauce from the Famous Star’s, though. There, Carl’s Jr. lists a red Special Sauce and mayonnaise as two separate layers, and my Famous Star copycat recipe keeps them apart for that reason.

How to get the charbroiled taste without a barbecue

The charbroiled taste comes from direct, intense heat that chars the beef in lines, and a smoking-hot ridged cast-iron grill pan is the closest indoor match. Carl’s Jr. cooks its patties over an open flame on a chain-driven broiler, and since September 9, 2026, it grills each burger to order instead of holding it warm (Restaurant Dive; Wikipedia). “Carl’s Jr. has never been in the business of serving burgers that are just good enough,” brand president Iwona Alter said of that change.

A Carl’s Jr. at Canyon Plaza in Los Angeles in May 2026, with “Charbroiled Burgers” on the façade: the chain grills its patties over an open flame, and has cooked every burger to order since September 9, 2026. Alt: Carl’s Jr. restaurant in Los Angeles with its Charbroiled Burgers sign (Photo: TaurusEmerald, CC BY-SA 4.0, https://commons.wikimedia.org/wiki/File:Carl%27s\_Jr.\_Canyon\_Plaza\_Los\_Angeles,\_California.jpg (4032×2310; loading=lazy, decoding=async))

• Use a ridged pan, not a flat skillet. The ridges mark the beef and let fat drip into the grooves and sizzle.
• Preheat for 5 minutes on high. If the patty doesn’t hiss loudly, the pan isn’t ready.
• Start cold. Thin patties overcook fast; 20 minutes in the freezer buys you time to char the outside.
• Leave them alone. Don’t move or press the patties during the first 2–3 minutes.
• On a barbecue, go direct and high. Thin patties need only a few minutes, so check the 160 °F (71 °C) core early.

Why this copycat tastes like the original

This copycat stays close to the original because it keeps the four things Carl’s Jr. built the burger around: grilled onions, Thousand Island, two thin charbroiled patties and American cheese. Everything else is my estimate, and labeled as one.

Carl’s Jr. said so itself. Brad Haley, then the chain’s marketing chief, put it plainly at launch: “What really made them special was the addition of grilled onions and Thousand Island dressing.” Brand Eating’s 2016 review added two things the chain didn’t mention, crisp lettuce and a tomato that actually tasted of something, which is why I slice the tomato thin and keep the lettuce on top, away from the heat.

My pick is the 2016 build, with a slice of cheese on each patty. With one slice, the top patty and the onions sit a little dry against the sauce. Two slices hold the whole stack together, and that’s the burger Carl’s Jr. launched.

California Classic vs Cali XL vs In-N-Out Double-Double

The California Classic is the smaller, cheaper version; the Cali XL, launched in October 2025, is the supersized one; and the In-N-Out Double-Double is the burger the press compared it to from day one.

Sources: Brand Eating, The National Provisioner, Foodbeast.

California Classic vs Cali XL vs In-N-Out Double-Double: patties (Cali XL 2 × 3.5 oz raw), cheese slices, sauce, onions, bun and US price ($4.99 for the California Classic at one Los Angeles restaurant, $5.99 for the Cali XL launch offer). Sources: Brand Eating, The National Provisioner, Foodbeast. Alt: comparison table of the Carl’s Jr. California Classic, the Cali XL and the In-N-Out Double-Double (Table: Burger Breton, data from Brand Eating, The National Provisioner and Foodbeast; original table, no license required)

Cali XL copycat

To make a Cali XL copycat, keep this recipe and change three things: two 3.5 oz (about 99 g) patties per burger, two slices of American cheese, and a toasted sesame seed bun. Carl’s Jr. sold it at $5.99 under the slogan “Stacked Tall. Priced Small.” The offer ran until January 21, 2026, and I couldn’t confirm whether the Cali XL is still on the menu today. Its launch was an open swipe at McDonald’s: from November 12 to 21, 2025, the “Sad Mac Buy Back” traded a free Cali XL for a McDonald’s burger receipt, with Carl’s Jr. claiming “double the beef of a Big Mac”. For the bigger picture, read our coverage of the 2026 burger value wars.

Is the California Classic a Double-Double copy?

The press read the California Classic as Carl’s Jr.’s answer to the In-N-Out Double-Double, and the build makes the comparison hard to avoid. Foodbeast tasted it in May 2016 at about $2.70 and found less cheese, less melt and milder onions than the Double-Double, but a sauce very close to In-N-Out’s spread. My take: if you want a homemade In-N-Out-style burger, this recipe gets you most of the way, with grill marks instead of a griddle sear.

An In-N-Out Double-Double with grilled onions, the burger the press compared to the California Classic from launch: melted American cheese, chopped grilled onions, lettuce and tomato in a paper wrapper. This is In-N-Out’s burger, not Carl’s Jr.’s. Alt: In-N-Out Double-Double with grilled onions and melted American cheese, the burger compared to the Carl’s Jr. California Classic (Photo: eric molina (permanently scatterbrained), CC BY 2.0, https://www.flickr.com/photos/88774309@N00/3506142145 (1024×680; loading=lazy, decoding=async))

California Classic history: a 2016 tribute to Southern California

Carl’s Jr. announced the California Classic on May 25, 2016, for its 75th anniversary; the chain was founded in Los Angeles in 1941 by Carl and Margaret Karcher. The brand presented it as a tribute to California’s first iconic double cheeseburgers, made with fresh produce, American cheese, grilled onions and Thousand Island. The idea came from John Nelson, president of the Carl’s Jr. franchisee association (La Opinion / LatinoWire).

It launched at $2.49 on its own and $4.99 as a combo with fries and a drink, backed by a “Welcome to California” campaign from the agency 72andSunny, on air from May 30, 2016 (The Impulsive Buy; Brand Eating). You’ll also see a 1997 first-release date online. I found no primary source for it, so I go with May 2016.

California Classic calories and price

The official US menu lists the California Classic Double Cheeseburger at 570 calories, checked on November 11, 2026 (Carl’s Jr.). In 2016, the 283 g (10 oz) burger had 620 calories, 39 g of fat (15 g saturated), 1,130 mg of sodium, 41 g of carbohydrates (12 g sugars) and 29 g of protein (The Impulsive Buy). The drop likely reflects recipe changes such as the cheese count, but Carl’s Jr. hasn’t said. I give no nutrition for the homemade version: it depends too much on your bun, beef and cheese.

Bar chart of California Classic calories: 620 kcal in 2016 for a 283 g (10 oz) burger (The Impulsive Buy / Brand Eating), compared with 570 kcal on the official US menu checked on November 11, 2026 (Carl’s Jr.). Alt: bar chart comparing the Carl’s Jr. California Classic’s calories, 620 in 2016 and 570 in 2026 (Chart: Burger Breton, data from Carl’s Jr. official US menu (2026), The Impulsive Buy and Brand Eating (2016); original chart, no license required)

Nutrition of the 2016 California Classic, per 283 g (10 oz) burger: 620 calories, 39 g fat (15 g saturated), 41 g carbohydrates (12 g sugars), 29 g protein, 1,130 mg sodium. These are the chain’s figures, not the homemade version’s. Alt: nutrition table for the 2016 Carl’s Jr. California Classic Double Cheeseburger (Table: Burger Breton, data from The Impulsive Buy and Brand Eating (2016); original table, no license required. FLAG: the step-by-step grid (golden onions, patties with grill marks on a ridged cast-iron pan, cheese melt, finished stack cut in half) needs original photos from the test cook; no licensed photo of this homemade build exists. Replace the cover with an original photo of the homemade burger once one is shot)

Carl’s Jr. doesn’t publish a national US price, and prices vary by restaurant. The latest one I could source is $4.99 at a Los Angeles Carl’s Jr. in October 2025.

Where to eat a California Classic

The California Classic is a US menu item, and no official source confirms it outside the United States. In Mexico, Carl’s Jr. sells a different burger called the Classic Burger: grilled beef, yellow cheese, Classic Sauce and lettuce, listed at 115 MXN on an unofficial menu site (fastfoodsmenu.com). Don’t mistake it for this one. For the chain’s full story and figures, see our Carl’s Jr. brand profile.

More Carl’s Jr. and Hardee’s copycats

These other copycats from Carl’s Jr. and its sister brand Hardee’s, both owned by CKE, use the same method: official build first, then a recipe for two.

• Carl’s Jr. Famous Star copycat recipe: one charbroiled patty with special sauce and mayo.
• Carl’s Jr. Western Bacon Cheeseburger copycat: bacon, onion rings and barbecue sauce.
• Hardee’s Monster Thickburger copycat: the sister brand’s heaviest stack.
• Hardee’s Big Cheeseburger copycat: a simpler Hardee’s classic.

Browse all our burger recipes for more chain copycats and techniques.

California Classic FAQ

What’s on a Carl’s Jr. California Classic? Two charbroiled beef patties, American cheese, grilled onions, Thousand Island sauce, lettuce and tomato on a bun, per the 2016 launch announcement. It’s sold in the US as the California Classic Double Cheeseburger.

Is the sauce Thousand Island or Classic Sauce? Carl’s Jr. announced Thousand Island in 2016. The Cali XL and some unofficial menus say Classic Sauce, whose recipe isn’t published, so I can’t confirm whether they’re the same sauce.

What’s the difference between the California Classic and the Cali XL? The Cali XL, launched in October 2025, has bigger 3.5 oz (99 g) patties, two slices of cheese and a toasted sesame bun, at $5.99. The California Classic Brand Eating tried that month had smaller patties, one slice of cheese and a plain bun, at $4.99 in Los Angeles.

Is the California Classic a copy of the In-N-Out Double-Double? It was compared to the Double-Double from launch. Foodbeast found less cheese and milder onions, but a sauce very close to In-N-Out’s spread.

How many calories are in a California Classic Double Cheeseburger? 570 calories on the official US menu, checked November 11, 2026. The 2016 version was listed at 620 calories for 283 g.

How much does the California Classic cost in the US? It launched at $2.49 in 2016. The latest price I could source is $4.99 at a Los Angeles restaurant in October 2025; prices vary by location.

Can I get a California Classic outside the US? No official source confirms it outside the United States. In Mexico, Carl’s Jr. sells a different burger called the Classic Burger.

How do I get the flame-grilled taste without a barbecue? Preheat a ridged cast-iron grill pan on high for 5 minutes, grill frozen-firm thin patties and don’t move them for the first 2–3 minutes.

What ground beef and patty weight should I use? 80/20 ground beef, 60–70 g (2.1–2.5 oz) per patty, two per burger. Carl’s Jr. doesn’t publish the weight; this is my estimate, below the Cali XL’s official 3.5 oz.

Is this the official Carl’s Jr. recipe? No. The build is official; the patty weight, seasoning, onion method, sauce ratio, cooking times and assembly order are my homemade choices.