Easy Smash Burgers Recipe with Homemade Baconnaise Sauce - My Home Made Recipe

Ingredients

• 8 slices bacon, cooked crisp and finely chopped
• 1/2 cup (120 g) mayonnaise
• 2 tablespoons ketchup
• 1 tablespoon yellow mustard
• 1 teaspoon Dijon mustard
• 1 tablespoon honey
• 1 tablespoon pickle brine
• 1/2 teaspoon chili flakes
• 2 lb (900 g) 80/20 or 85/15 ground beef
• 1 small yellow onion, shaved very thin
• 1 1/2 teaspoons kosher salt
• 1 teaspoon black pepper
• 1 teaspoon garlic powder
• 8 slices American cheese
• 4 brioche or potato burger buns
• 2 tablespoons unsalted butter, softened, for buns
• Pickle chips, shredded lettuce, or sliced tomato, optional