For a vegetarian option, omit the bacon and add sautéed mushrooms or spinach along with the caramelized onions. To prevent the crust from becoming soggy, make sure to blind-bake it properly and brush it with egg wash before adding the filling. For a deeper flavor, use a combination of Cheddar and Gruyere cheese. The caramelized onions can be made ahead of time and stored in the refrigerator for up to 3 days.
Litzy Johnson
Feb 3, 2025This quiche is absolutely divine! The caramelized onions are the star of the show.
Oceane Wintheiser
Nov 7, 2024I've made this recipe several times, and it's always a hit!
Makenzie Cronin
Aug 6, 2024The crust was perfectly flaky, and the filling was so creamy and flavorful. A definite keeper!