Peperoni-Vidalia Onion Quiche

A quiche that borrows flavors from a pizza: slow-cooked Vidalia onions, spicy pepperoni slices, and Swiss cheese in a silky egg custard baked in a flaky pie shell. The Vidalia onions are the foundation here, cooked low and slow until they practically melt into a sweet, caramelized base.

Six cups of minced onion cook down dramatically over low heat. Patience matters. You want them soft and translucent, not browned. A sprinkle of flour thickens them slightly so they don’t make the custard watery. The custard itself uses half-and-half and plain yogurt together, which adds a subtle tang that cuts through the richness of the eggs and cheese.

Pepperoni slices arranged on top crisp slightly during baking and add salty, spiced punch to every slice. Swiss cheese on the bottom and top creates gooey pockets throughout.

Chef Tips

• Cook the onions low and slow. Vidalia onions are naturally sweet, and slow cooking concentrates that sweetness without adding bitterness from browning.
• Cool the onion mixture completely before adding to the eggs. Hot onions scramble the custard.
• The two-temperature bake (high then low) sets the crust quickly at high heat, then gently cooks the custard through at lower heat.
• Let the quiche rest 10 minutes after baking for cleaner slices.

Variations

• Use Italian sausage crumbles instead of pepperoni for a heartier filling.
• Swap Swiss for Gruyere for a more traditional French quiche flavor.
• Add roasted red peppers alongside the pepperoni for color and sweetness.