Which type of cheese is commonly used in a classic "Quiche Lorraine"?

Quiche Lorraine traditionally features Gruyère cheese, which is known for its smooth melting qualities and rich, nutty flavor that complements the other ingredients in the dish. This Swiss cheese adds depth to the quiche's custard filling, which typically also includes eggs and cream, creating a harmonious balance of flavors and textures.

Gruyère's ability to melt beautifully makes it ideal for quiche, preserving the light and airy texture that is characteristic of this French dish. While Cheddar, Feta, and Ricotta cheeses all have their unique flavors and uses, they do not provide the same classic taste profile or texture that Gruyère brings to a Quiche Lorraine. Cheddar can be overpowering, Feta is crumbly and salty, and Ricotta is too soft and creamy, lacking the firm character needed to stand up in a baked quiche. Thus, Gruyère remains the signature cheese for this iconic recipe.