Caramelized Onion, Mushroom and Gruyere Frittata
(from SallyV’s recipe box)
I have omitted the bacon from this recipe to make it vegetarian, but if you like, fry 2 slices, crumble and add to egg mixture.
Source: Tasty Kitchen
Prep time: 15 minutes
Cook time: 45 minutes
Serves 6 people
Categories: Brunch
Ingredients
- 2 T. butter
- 1 cup onion, thinly sliced
- 8 oz. Cremini mushrooms, sliced
- 6 eggs
- 2 T. milk
- 1 C. grated Gruyere cheese
- 2 T. Parmesan cheese, grated
- Salt and pepper
Directions
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In an oven-proof skillet, melt butter over medium heat. Add onions. Reduce heat to medium low and continue to cook until onions soften and become an even light brown color (20-30 minutes). Remove onions to a plate.
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In the same skillet, add mushrooms and additional butter, if necessary, and cook over medium heat until soft. Sprinkle salt over mushrooms. Add onions back to skillet and remove from heat.
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In a large bowl, whisk together eggs, milk, 1/2 cup Gruyere and a dash of salt and pepper.
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Pour egg mixture into the skillet with the onions and mushrooms. Stir well to combine. Cook over medium heat until eggs are partially set. The outside should look cooked with bits of uncooked egg throughout the middle.
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Turn on the broiler of your oven and place rack on second level down. Sprinkle egg with remaining Gruyere then place skillet under the broiler. Broil for 2-3 minutes or until egg is fully cooked and cheese is slightly browned and bubbly. Sprinkle with Parmesan cheese.