Prosciutto Egg Cups

1. 1

   Cook and stir onion, brown sugar, and vinegar in a skillet over medium heat until onion is golden, about 20 minutes.

2. 2

   Preheat oven to 350 degrees F (175 degrees C). Spray a 6-muffin tin with cooking spray.

3. 3

   Whisk egg whites and eggs in a large measuring cup.

4. 4

   Fill each muffin cup halfway with egg mixture. Scatter onion, Gouda cheese, and prosciutto cubes on top. Cover with remaining egg mixture, leaving 1/4-inch space at the top for eggs to rise.

5. 5

   Bake in the preheated oven until golden brown on top, about 20 minutes.

* Per serving · 4 servings · Values may vary.

No additional tips available.