Croissant Burger with Cheddar and Spicy Mayonnaise Recipe
Oh, let me tell you about this Croissant Burger with Cheddar and Spicy Mayonnaise Recipe — it’s one of those genius combinations that feel fancy but come together super easily. Imagine the buttery, flaky texture of a croissant hugging a juicy beef patty topped with melted cheddar, while a zingy, spicy mayo kick brings it all to life. Trust me, this isn’t just a burger; it’s a delicious little escape from your usual sandwich routine.
I first made this on a lazy weekend when I was craving something indulgent yet quick, and it instantly became a favorite. What makes this Croissant Burger with Cheddar and Spicy Mayonnaise Recipe so worth trying is how the contrasting flavors and textures balance each other perfectly — the sweetness of caramelized onions, the sharpness of cheddar, and that smoky, spicy mayo combo. Whether you’re cooking for a casual lunch or impressing friends with minimal fuss, this recipe’s got your back.
Ingredients You’ll Need
Every ingredient here plays its part in creating those layers of flavor, so I recommend using fresh, quality ingredients—especially for the ground beef and croissants. Pro tip: If you can get fresh-baked croissants from a local bakery, go for it. It really makes a difference in the final bite.
- Croissants: Choose buttery, flaky croissants that will crisp up nicely when toasted.
- Ground beef: I use 80/20 for that perfect juicy melt factor in the patty.
- Onion: A yellow or sweet onion works best for caramelizing.
- Unsalted butter: Essential for those rich, golden caramelized onions.
- Balsamic vinegar: Adds a lovely tangy depth to the onions.
- Brown sugar: Just enough to sweeten and balance the tang from the vinegar.
- Water: Helps the onions cook gently without burning.
- Cheddar cheese slices: Sharp cheddar melts beautifully and adds a punch of flavor.
- Mayonnaise: The creamy base of our spicy mayo sauce.
- Mustard: A touch of tanginess to brighten the sauce.
- Tomato paste: Adds subtle sweetness and umami to the mayo.
- Sriracha sauce: For that perfect spicy kick—adjust to taste!
- Garlic powder, onion powder, paprika: These spices round out the sauce and add warmth.
Variations
One of the best parts about this Croissant Burger with Cheddar and Spicy Mayonnaise Recipe is how easy it is to adapt. Personally, I like playing around with different cheeses or swapping out the beef for turkey or plant-based patties when I want a lighter or vegetarian option.
- Cheese Swap: Using pepper jack instead of cheddar adds a nice spicy twist that I love for a little extra heat.
- Vegetarian Version: Try a black bean or mushroom patty – it holds up nicely with the rich croissant and spicy mayo.
- Green Additions: I sometimes toss in fresh arugula or baby spinach for some peppery greens that cut through the richness.
- Spice Level: Adjust the Sriracha in the spicy mayo to your liking. I’ve made a milder version just by reducing it and adding a pinch of smoked paprika instead.
How to Make Croissant Burger with Cheddar and Spicy Mayonnaise Recipe
Step 1: Caramelize the Onions to Perfection
Start by finely slicing your onion. Heat a tablespoon of unsalted butter over medium-low heat and add the onions once the butter melts. Stir frequently to avoid burning, and once the onions soften (around 5 minutes), sprinkle in the brown sugar and drizzle in the balsamic vinegar along with the tablespoon of water. This slow caramelization gives you those sweet, tangy, melt-in-your-mouth onions that make this Croissant Burger with Cheddar and Spicy Mayonnaise Recipe really sing. It might take about 15 minutes, but it’s so worth the patience!
Step 2: Shape and Cook the Patties
While the onions are working their magic, form your ground beef into two equal patties, slightly wider than your croissants since they’ll shrink a bit while cooking. Season each patty with salt and pepper. Cook them over medium-high heat in a skillet for about 3-4 minutes per side, until you get a nice crust. Throw the cheddar slices on top during the last minute so they melt beautifully. If your pan is too hot and the outside starts burning before the inside is cooked, lower the heat a bit—no one wants a raw middle or charred burger!
Step 3: Toast the Croissants
Slice your croissants in half and lightly toast them in a separate pan or your toaster oven. You want them warm and slightly crispy, but still soft inside to complement the burger’s texture. This small step adds a lovely crunch and stops the croissants from getting soggy once you add the toppings.
Step 4: Mix the Spicy Mayonnaise
In a small bowl, combine mayonnaise, mustard, tomato paste, Sriracha, garlic powder, onion powder, and paprika. Mix well until smooth. Taste and tweak—if you like it spicier, add a bit more Sriracha, or a squeeze of fresh lemon juice for brightness. This sauce is what sets this Croissant Burger with Cheddar and Spicy Mayonnaise Recipe apart, balancing creamy, tangy, and spicy flavors in every bite.
Step 5: Assemble and Enjoy
Now for the fun part! Spread a generous layer of that spicy mayo on both croissant halves. Top the bottom half with a cheesy burger patty, then spoon over those gorgeous caramelized onions. Add the top croissant half, press gently, and you’re ready to dig in. It’s messy, it’s indulgent, and oh-so-rewarding.
How to Serve Croissant Burger with Cheddar and Spicy Mayonnaise Recipe

Garnishes
I love adding crisp lettuce or peppery arugula for some fresh crunch and a pop of color. Thinly sliced pickles are also a nice, tangy contrast that cuts through the richness of the cheddar and mayo. Fresh tomato slices work well too if you need a juicy burst.
Side Dishes
For sides, my go-to is crispy sweet potato fries or simple kettle-cooked chips. A fresh green salad with a bright vinaigrette balances things out nicely, and if you’re feeling extra, a crunchy coleslaw adds that cool creaminess alongside the spicy burger.
Creative Ways to Present
For special occasions, I like serving mini croissant sliders instead of full-size burgers. They’re perfect finger food for parties or casual gatherings. You can also place a small skewer through the center with a cherry tomato or pickle to keep everything neatly stacked and add a touch of flair.
Make Ahead and Storage
Storing Leftovers
If you have leftovers (which rarely happens in my house!), store the burger components separately to keep textures intact: patties and onions wrapped in foil or airtight containers, and croissants wrapped in plastic or in a bread bag. The sauce is best kept in an airtight jar in the fridge. This approach keeps everything tasting fresh when reheated.
Freezing
I’ve frozen cooked burger patties before with good results—just cool them completely, wrap tightly, and freeze. Croissants don’t freeze as well after baking, so I recommend freezing extra croissants before assembling if you want to prep ahead. The spicy mayo sauce doesn’t freeze well, so keep it fresh in the fridge.
Reheating
For the best texture, gently reheat patties in a skillet over medium heat rather than the microwave. Warm croissants in a toaster oven or oven to bring back their flaky crispness. Add fresh spicy mayo and onions once warmed so everything stays delicious and not soggy.
FAQs
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Can I use regular burger buns instead of croissants?
Absolutely! While croissants bring a unique buttery flakiness that makes this recipe special, regular burger buns work fine. Just keep in mind the texture and flavor will be different, less rich but still delicious, especially with that spicy mayo.
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How spicy is the spicy mayonnaise?
The spice level is mild to medium, mainly from the Sriracha. You can easily tone it down or amp it up by adjusting the quantity according to your taste. If you prefer no heat, simply omit the Sriracha and add a dash of smoked paprika for flavor.
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Can I make this recipe dairy-free?
Yes! Swap out the butter for a plant-based alternative when caramelizing the onions, and use dairy-free cheddar slices or omit cheese entirely. Make sure your croissants are dairy-free too, or substitute with a suitable bun.
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How long does it take to make this Croissant Burger with Cheddar and Spicy Mayonnaise Recipe?
From start to finish, it should take about 30-35 minutes, mostly because of the time needed to caramelize the onions properly. The rest of the steps are quick and straightforward.
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Can I prepare any parts of this Croissant Burger with Cheddar and Spicy Mayonnaise Recipe ahead of time?
Yes! Caramelized onions and spicy mayo can be made a day or two ahead and stored in the fridge. Just assemble your burgers fresh for the best texture and flavor.
Final Thoughts
This Croissant Burger with Cheddar and Spicy Mayonnaise Recipe really hits that sweet spot between comfort food and something a bit special. I always enjoy making it when I want to treat myself or impress guests without spending all day in the kitchen. You’ll love how easy it is to customize it with your favorite flavors and how impressively delicious it turns out every single time. Next time hunger strikes and you want something substantial yet a bit unexpected, give this recipe a go — you’re going to be so glad you did!
PrintCroissant Burger with Cheddar and Spicy Mayonnaise Recipe
A decadent and flavorful Croissant Burger recipe combining juicy ground beef, caramelized onions, melted cheddar, and a tangy homemade sauce, all nestled inside buttery, flaky croissants.
- Prep Time: 15 minutes
- Cook Time: 15 minutes
- Total Time: 30 minutes
- Yield: 2 servings 1x
- Category: Burger
- Method: Stovetop
- Cuisine: American
Ingredients
For the Burger:
- 2 croissants
- 7 oz ground beef
- 1 onion, thinly sliced
- 1 tablespoon unsalted butter
- 1 teaspoon balsamic vinegar
- 1 teaspoon brown sugar
- 1 tablespoon water
- 2 slices cheddar cheese
For the Sauce:
- 1 tablespoon mayonnaise
- ½ teaspoon mustard
- ½ teaspoon tomato paste
- ½ teaspoon Sriracha sauce
- ½ teaspoon garlic powder
- ½ teaspoon onion powder
- ½ teaspoon paprika
Instructions
- Prepare the caramelized onions: In a skillet over medium heat, melt the unsalted butter. Add the thinly sliced onion and cook gently until softened and beginning to brown, about 10 minutes. Stir in the balsamic vinegar, brown sugar, and water, then continue cooking until the onions are deeply caramelized and sticky, another 5-7 minutes. Set aside.
- Cook the beef patty: Shape the ground beef into a patty slightly smaller than the croissants. In the same skillet or another pan over medium-high heat, cook the patty for about 3-4 minutes per side for medium doneness, or longer if desired. Place the cheddar slices on top of the patty during the last minute of cooking to melt.
- Make the sauce: In a small bowl, mix together the mayonnaise, mustard, tomato paste, Sriracha, garlic powder, onion powder, and paprika until smooth and well combined.
- Assemble the croissant burgers: Slice the croissants in half horizontally. Spread the prepared sauce evenly on both cut sides of the croissants. Place the melted cheddar beef patty on the bottom halves, top with caramelized onions, then cover with the top halves of the croissants.
- Serve immediately: Serve the croissant burgers while warm for the best flavor and texture experience.
Notes
- For extra crispness, you can toast the croissants lightly before assembling.
- Adjust the Sriracha quantity to control the spice level of the sauce.
- Ground beef with about 20% fat content works best for juicy burgers.
- Leftover caramelized onions can be stored refrigerated for up to 3 days.
Keywords: croissant burger, caramelized onions, cheddar burger, homemade sauce, quick burger recipe
