Quiche Lorraine

(9 inch) unbaked pie crust (boxed or homemade both work)

slices bacon, cut into 1 inch pieces

chopped leeks (white and pale green parts only) *If you do not have leeks, than use 1/2 cup of diced green onions

chopped onion

salt and freshly ground black pepper

cayenne pepper, or more to taste

eggs

egg yolks

heavy cream

milk

chopped fresh thyme (dried if you don't have fresh)

shredded Gruyere cheese (Swiss if you can't get Gruyere)