Caramelized Onion Crostini

8 ingredients
3 steps

Ingredients

  • 3 tablespoons butter
  • 6 onions, thinly sliced
  • 1 teaspoon sugar
  • 1 tablespoon fresh thyme
  • salt and pepper
  • 1 teaspoon balsamic vinegar
  • 32 crostini, slices
  • 8 ounces swiss cheese, shredded

Directions

  1. 1
    In a large skillet, melt butter over medium heat. Add onions and cook, stirring, until softened. Stir in sugar and cook, stirring, until onions are browned, about 25 minutes.
  2. 2
    Stir in thyme, salt, pepper and vinegar. Remove from heat.
  3. 3
    Preheat broiler. Spread crostini liberally with onion and sprinkle with cheese. Place under broiler until cheese is melted.

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