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Loaded Smash Burger with Lamb, Brie, and Caramelized Onion Crema

Loaded Smash Burger with Lamb, Brie & Caramelized Onion Crema

Print Recipe
Prep Time 25 minutes
Cook Time 20 minutes
Servings 2 double-stacked burgers

Ingredients

Burgers:

  • 450 g ground lamb portioned into 5 golf ball-sized balls
  • Salt and pepper to taste
  • Brie cheese sliced
  • Butter lettuce leaves
  • Brioche burger buns
  • Unsalted butter for toasting buns
  • Canola or vegetable oil for cooking

Sautéed Mushrooms:

  • 5 cremini mushrooms thinly sliced
  • 1 sprig fresh rosemary chopped
  • 1 sprig fresh thyme chopped
  • 3 leaves fresh sage chopped
  • 1 tbsp unsalted butter
  • Splash of olive oil
  • Salt and pepper to taste

Caramelized Onion Crema:

  • ¼ cup mayonnaise
  • ¼ cup sour cream
  • 1 small onion thinly sliced
  • 2 garlic cloves minced
  • 1 tsp Worcestershire sauce
  • 1 tsp balsamic vinegar
  • 2 tsp of sugar
  • Pinch of paprika optional
  • Salt and pepper

Instructions

  • Portion lamb into 5 balls. Chill until ready to cook.
  • Make caramelized onion crema:
  • Cook onions slowly in butter over medium-low heat. Season with a pinch of salt. Once golden, add minced garlic, sugar and sautee for about a minute. Let cool. Blend with sour cream, mayo, salt, and pepper until smooth.
  • Sauté mushrooms:
  • In a hot pan, melt butter and a little oil. Add mushrooms. Let them sear for 30 seconds, then stir. Add rosemary, thyme and sage. Cook until golden. Season with salt and pepper.
  • Cook smash burgers:
  • Heat a pan over medium. Add oil. Smash each lamb ball flat using parchment paper and a spatula. Season. Cook 30 seconds, flip, season again. Top each patty with brie.
  • Stack burgers:
  • Stack two patties together with brie in between. Keep warm in a 350°F oven to melt the cheese fully.
  • Toast buns:
  • Butter buns and toast face-down in a pan until golden.
  • Assemble:
  • Spread caramelized onion crema on the bottom bun. Add lettuce, the double-patty stack, sautéed mushrooms, more crema on the top bun, and close it up. Enjoy!

Notes

  • Smash burgers cook quickly — keep an eye on them!
  • Lamb adds rich flavor but you can substitute ground beef if preferred.
  • The caramelized onion crema also makes a great dip for fries!