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Mini Burgers with Caramelized Onions

  • Prep:
  • Total Time:
  • Yield: Makes 8 mini burgers
Mini Burgers with Caramelized Onions

Photography: Francesco Lagnese

Source: Martha Stewart Living

Ingredients

For the Caramelized Onions

  • 2 tablespoons extra-virgin olive oil
  • 3 medium onions, thinly sliced
  • 1/4 cup red wine
  • 4 sprigs thyme
  • Coarse salt and freshly ground pepper

For the Burgers

  • 2 tablespoons extra-virgin olive oil
  • 1 small onion, preferably Vidalia, finely chopped
  • 1 pound ground beef
  • 1 tablespoon chopped fresh flat-leaf parsley
  • Coarse salt and freshly ground pepper
  • 1.5 oz. Comte cheese, thinly sliced, cut into 1 1/2-inch squares
  • 3 red tomatoes, such as Campari, sliced 1/4-inch thick
  • 8 three-inch mini brioche buns, split in half

Directions

  1. Make the onions: Heat oil in a medium skillet over medium-high heat. Add onions and cook, stirring occasionally, until soft, about 8 minutes. Reduce heat to medium-low and continue cooking, stirring occasionally, until nicely browned and caramelized, about 30 minutes more.

  2. Add wine, thyme, and 1/4 cup water. Raise heat to medium-high and cook, stirring occasionally, until the liquid has evaporated, about 3 minutes. Season with salt and pepper.

  3. Make the burgers: heat oil in a small skillet over medium-high heat. Add onion and cook, stirring occasionally, until translucent, about 2 minutes. Remove from heat and let cool completely.

  4. Heat a grill to medium-high. Combine beef, parsley, and onion in a bowl. Season with salt and pepper. Form into 8 one-inch-thick patties. Grill 4 to 5 minutes per side for medium-rare. Top with a square of cheese after flipping burger if desired. Assemble with caramelized onions and skewers.

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