Stacked Smash Cheeseburger with Caramelized Onions – The Ultimate Burger Night Upgrade

If you’re a fan of juicy burgers with crispy edges and gooey melted cheese, the Stacked Smash Cheeseburger with Caramelized Onions is a must-try recipe. This burger takes the classic cheeseburger to the next level by using the smash burger technique, which creates a thin, crispy crust while keeping the inside juicy and flavorful.

Each burger features two thin smash patties stacked with melted cheddar cheese and topped with rich caramelized onions, all served on a toasted sesame bun. The sweetness of the slow-cooked onions perfectly balances the savory beef and melted cheese.

This recipe delivers restaurant-quality burgers right in your own kitchen, and it’s surprisingly simple to make.

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Why I Love This Recipe

There are several reasons this burger stands out.

The smash technique creates incredible flavor.
Pressing the beef onto a hot skillet creates crispy edges that are packed with savory flavor.

Caramelized onions add sweetness and depth.
Slow-cooked onions bring a rich, almost jam-like texture that elevates the entire burger.

Stacking two patties makes it extra satisfying.
The double-layered beef and cheese make each bite incredibly juicy.

If you enjoy hearty comfort meals like this burger, dishes such as How to Make Perfect Grilled Cheese with Homemade Tomato Soup are also perfect for cozy dinners.

Ingredients

These simple ingredients combine to create a bold and flavorful burger.

Burger Patties

• 1 1/2 lbs ground beef (80/20 recommended)
• 1 tablespoon Worcestershire sauce
• Salt to taste
• Black pepper to taste

Toppings

• 6 slices cheddar cheese or American cheese
• 1 large onion, sliced into rings

Cooking

• 2 tablespoons butter
• 1 tablespoon olive oil

Assembly

• 4 sesame seed burger buns
• Mayonnaise or burger sauce

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Ingredient Swaps and Notes

This burger recipe can easily be customized.

Best beef blend

An 80/20 ground beef ratio gives the best balance of flavor and juiciness.

Cheese options

While cheddar is delicious, you can also try:

• American cheese (classic burger melt)
• Pepper Jack
• Swiss cheese

Sauce ideas

Besides mayonnaise, you could use:

• Classic burger sauce
• Garlic aioli
• Barbecue sauce

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Step-by-Step Instructions

1. Caramelize the Onions

Heat butter and olive oil in a skillet over medium-low heat.

Add the sliced onions and cook slowly for 15–20 minutes, stirring occasionally.

The onions should become soft, golden brown, and sweet.

Set them aside once caramelized.

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2. Prepare the Beef

Divide the ground beef into 8 small balls.

These will form the thin smash burger patties.

Avoid overworking the meat to keep the burgers tender.

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3. Heat the Cooking Surface

Place a cast-iron skillet or flat griddle over high heat.

Allow it to get very hot before adding the beef.

A hot surface is key to creating crispy edges.

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4. Smash the Patties

Place the beef balls onto the hot skillet.

Using a spatula or burger press, smash each ball flat immediately.

Season the patties with:

• Salt
• Black pepper
• A splash of Worcestershire sauce

Cook for about 2–3 minutes until the edges become crispy.

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5. Add Cheese

Flip the patties carefully.

Immediately place a slice of cheese on each patty.

Cook briefly until the cheese melts.

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6. Toast the Buns

Lightly butter the burger buns.

Toast them in a skillet until golden and crisp.

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7. Assemble the Burgers

Spread mayonnaise or burger sauce on the bottom bun.

Stack two smash patties on each bun.

Add a generous portion of caramelized onions.

Top with the upper bun.

Press gently and serve immediately.

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Tips for the Best Smash Burgers

These tips will help you achieve perfect burgers every time.

Use high heat

A very hot skillet helps create the signature crispy crust.

Smash once only

Press the patty right after placing it on the skillet and avoid pressing again.

Don’t overcrowd the pan

Cook the patties in batches if necessary.

Use thin patties

Thin patties cook quickly and develop the best crust.

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Serving Suggestions and Pairings

These burgers pair perfectly with fresh and comforting sides.

For a crisp contrast, serve them with Easy Homemade Caesar Salad with Chicken.

For gatherings or cookouts, sides like Easy Classic Pasta Salad for Any Gathering are always a hit.

If you’re planning a lunch spread, sandwiches such as The Ultimate Turkey Club Wrap for Easy Lunches add variety.

For lighter protein options, Classic Tuna Salad with a Healthy No-Mayo Twist makes a refreshing side.

And for ultimate comfort food, try pairing with How to Make Perfect Grilled Cheese with Homemade Tomato Soup.

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Nutritional Information (Per Serving)

Approximate values per serving:

• Calories: 720
• Fat: 45 g
• Carbohydrates: 32 g
• Protein: 42 g

Nutrition values may vary depending on ingredients used.

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Storage and Leftover Tips

These burgers are best enjoyed fresh but can still be stored.

Refrigerator

Store cooked patties in an airtight container for up to 3 days.

Reheating

Reheat the patties in a skillet for best texture.

Freezing

Cooked burger patties can be frozen for up to 2 months.

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More Recipes You’ll Love

If you enjoyed these smash burgers, here are more delicious recipes to try:

• Easy Classic Pasta Salad for Any Gathering
• Easy Homemade Caesar Salad with Chicken
• The Ultimate Turkey Club Wrap for Easy Lunches
• Classic Tuna Salad with a Healthy No-Mayo Twist
• How to Make Perfect Grilled Cheese with Homemade Tomato Soup

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Final Thoughts

The Stacked Smash Cheeseburger with Caramelized Onions is the perfect burger for anyone who loves bold flavor and juicy, crispy beef. The smash technique creates irresistible texture, while the sweet caramelized onions bring a delicious balance to the savory patties.

Whether you’re cooking for a weekend burger night, a backyard cookout, or a casual family dinner, this stacked cheeseburger recipe is guaranteed to satisfy.

If you try this recipe, I’d love to hear how it turned out. Share your experience, leave a comment, and follow along for more delicious recipes and kitchen inspiration from Chef Maniac. 🍔