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Caramelized Onion and Bacon Frittata Muffins

a muffin style frittata filled with caramelized onions and bacon

Ingredients

Scale
  • 2 tablespoons butter
  • 1 medium onion, sliced
  • 1 tomato, diced (feel free to use about 3/4 cup canned too)
  • 8 large eggs
  • 1/4 cup milk
  • 1 teaspoon baking powder
  • 4 ounces mozzarella cheese, grated (divided in two halves)
  • salt and pepper to taste
  • 1/2 pound bacon, cooked and chopped

Instructions

  1. Preheat the oven to 375°F. Lightly grease a muffin tin with vegetable spray.
  2. In a medium skillet, melt the butter over high heat. Add the onions, allow to soften and slightly brown for about 5 minutes. Reduce heat. Add the tomatoes. Cover and allow to cook for 15-20 minutes or until caramelized. Feel free to add some balsamic vinegar or brown sugar to flavor. Once onions and tomatoes are caramelized, remove from heat and set aside.
  3. In a large bowl, beat the eggs and whisk in half of the cheese. Add baking powder and milk. Whisk to fully combine. Salt and pepper to taste.
  4. Spoon a small amount of the egg mixture into each muffin tin. Add the caramelized onions and bacon to each tin. Pour the remaining egg mixture over the bacon and onions. Top with the remaining cheese.
  5. Place the muffin tin in the preheated oven and bake for 15-20 minutes or until the frittata muffins begin to brown and the eggs are cooked.