This savory-sweet frittata blends golden caramelized onions with tender apple slices and melty Gruyère or Swiss cheese, all set in a rich, herbed egg base. Finished under the broiler for a puffed, golden top and infused with fresh sage or thyme, it’s an effortlessly elegant dish perfect for brunch or a light dinner.
6 large eggs
1/4 cup milk or cream
1 tbsp olive oil or butter
1 medium onion, thinly sliced
1 apple, thinly sliced (sweet or tart variety)
1/2 cup shredded Gruyère or Swiss cheese
1 tsp chopped fresh sage or thyme
Salt and black pepper to taste
Preheat oven broiler. In a bowl, whisk eggs, milk, salt, pepper, and herbs. Set aside.
Caramelize Onions & Apples: In an oven-safe skillet, heat oil over medium. Add onions and cook slowly until golden and soft, about 10 minutes. Add apple slices and cook 3–5 minutes more, until slightly tender.
Pour & Cook: Reduce heat to low. Spread the onion-apple mixture evenly. Pour egg mixture over and sprinkle with cheese. Cook without stirring until the edges begin to set, about 5–6 minutes.
Broil to Finish: Transfer skillet to the oven and broil for 2–3 minutes, until the top is puffed and golden.
Rest & Serve: Let sit for 5 minutes before slicing.
Find it online: https://thecomfortspoon.com/caramelized-onion-apple-frittata/