These smoky mini burgers are packed with flavor and topped with a delicious garlic tomato relish.
Finely chop half of the onion and set aside the other half for later use.
Use a sharp knife to ensure even chopping and avoid crushing the onion.
In a mixing bowl, combine the ground beef, chopped onion, Worcestershire sauce, chipotle chiles, and adobo sauce. Mix until well combined.
Avoid overmixing the meat to keep the burgers tender.
Form the mixture into 12 small patties, approximately 1/4 cup each.
Use damp hands to prevent the mixture from sticking.
Grill the patties over medium-high heat for 2-3 minutes on each side until cooked through.
Preheat the grill to ensure even cooking.
In a small saucepan, heat olive oil over medium heat. Add minced garlic and cook for 2 minutes.
Stir constantly to prevent the garlic from burning.
Add brown sugar, cider vinegar, and fire-roasted tomatoes to the saucepan. Simmer for 10 minutes.
Mash the tomatoes slightly for a smoother texture.
Assemble the burgers by placing each patty on a slider bun and topping with the garlic tomato relish.
Toast the buns for added flavor and texture.
Serve the burgers warm with your choice of sides.
Garnish with fresh herbs for a pop of color.