Blackstone Smash Burgers with Caramelized Onions

Succulent, juicy burgers sizzling on the grill paired with sweet, caramelized onions is a scene that can whisk you away to a backyard cookout. This recipe for Blackstone Smash Burgers with Caramelized Onions takes about 30 minutes and strikes a perfect balance between crispy and tender, maximizing flavor in every bite.

These burgers are for anyone seeking a meal that brings family and friends together. Whether it’s a weekend gathering or a spontaneous weeknight dinner, they can be prepped ahead of time, making for easy assembly when you’re ready to eat.

Why You’ll Love This Recipe

• The smash technique ensures every burger is perfectly crispy on the outside.
• Caramelized onions add rich sweetness that enhances the beefy flavor.
• Quick to make, bringing the cook time down to just 30 minutes.
• Each bite offers a delightful combination of textures, from soft buns to melty cheese.

What You’ll Need

Get ready to gather your ingredients for these delicious burgers.

For the Burgers

• 1 lb ground beef (80/20 for best flavor)
• 1 tsp kosher salt
• 1/2 tsp black pepper

For the Onions

• 2 large yellow onions, thinly sliced
• 2 tbsp unsalted butter
• 1 tbsp olive oil
• 1 tsp sugar (optional, for extra sweetness)

For Assembling

• 4 burger buns
• 4 slices cheddar cheese
• Lettuce (optional)
• Tomato slices (optional)
• Pickles (optional)

Use grass-fed beef for enhanced flavor.

Substitutions & Swaps

• Ground turkey works for a leaner option.
• Any cheese can replace cheddar.
• Sweet onions can substitute for yellow onions.
• Whole wheat buns for a healthier choice.

How to Make It

Let’s dive into preparing these delectable burgers.

Prepare the Patties

Form the ground beef into four equal patties, ensuring they are slightly wider than your buns. Season both sides generously with kosher salt and black pepper.

Caramelize the Onions

In a skillet over medium-low heat, melt the butter with olive oil. Add the sliced onions, tossing to coat, then sprinkle with sugar if desired. Cook for about 20 minutes until the onions are golden and sweet, stirring occasionally.

Toast the Buns

Add the burger buns to the grill or a separate skillet. Toast for about 2-3 minutes until golden brown, and remove.

Cook the Smash Burgers

Increase the heat to high. Place each burger patty on the grill and smash it down with a spatula to create a crust. Cook for 2-3 minutes on each side and add a slice of cheddar cheese on top during the last minute to melt.

How to Store It

Fridge: Store in an airtight container for up to 3 days.
Freezer: Yes, for up to 3 months without the toppings.
Reheat: Heat on a skillet for 3-4 minutes until warmed through.

Tips for Best Results

• Use a hot grill for proper burger searing.
• Let patties rest for a minute before serving for juiciness.
• Stir the onions regularly to prevent burning and promote even caramelization.
• Don’t overcrowd the grill for optimal cooking.

Serving Suggestions

• Serve with crispy fries for a classic meal.
• Pair with a fresh salad for a lighter option.
• Enjoy alongside craft beer for a perfect summer BBQ vibe.