Ingredients for - Crustless Caramelized Onions and Cheese

1. Butter 1 tablespoon
2. Olive oil 2 teaspoons
3. Onion, diced 1 small
4. Heavy whipping cream ¾ cup
5. Eggs 3
6. Salt and ground black pepper to taste 3
7. Shredded mozzarella cheese ¾ cup
8. Grated Parmesan cheese ¼ cup

How to cook deliciously - Crustless Caramelized Onions and Cheese

1 . Stage

Preheat the oven to 350 degrees F (175 degrees C). Grease an 8-inch square baking dish.

2 . Stage

Heat butter and olive oil in a skillet over medium-high heat; add onion. Cook and stir until softened, about 10 minutes; transfer onion to a plate to cool.

3 . Stage

Whisk cream, eggs, salt, and black pepper in a bowl; stir in mozzarella cheese, Parmesan cheese, and onion. Pour mixture into the prepared baking dish.

4 . Stage

Bake in the preheated oven until eggs are set and a knife inserted in the center comes out clean, about 35 minutes.