Leek Bacon and Gruyere Tart

makes one 9" tart.

1 single pie crust (see my Pie Crust 101 tutorial here.)
1 cup bacon, either cubed from slab bacon, or from about 4 thick slices
3 cups leeks from about 3 large leeks, thinly sliced and cleaned
1/4 cup dry white wine
1 teaspoon fresh thyme leaves, or 1/2 teaspoon dry
1 cup gruyere cheese, or cheese of your choice, grated
3 large eggs
1 cup milk

Heat the oven to 375 F.