What is the function of cheese in quiche?

Adds flavour and richness: Cheese adds a layer of flavour and a creamy, rich texture to quiche. Common types of cheese used in quiche include cheddar, parmesan, Gruyère, mozzarella, and goat cheese.

Binds the ingredients: Cheese acts as a binder, helping to hold the other ingredients together. When melted, the cheese becomes gooey and helps to create the signature creamy texture of quiche.

Enhances colour and browning: Cheese, especially when used in the topping layer, contributes to the quiche's colour and appearance. The cheese turns golden-brown when baked, adding an appealing visual element to the dish.

Provides extra protein and nutrients: Cheese is a source of protein, calcium, and other essential nutrients, which adds nutritional value to quiche.