2 leeks, white and light green (about 6 ounces)
6 slices smoked bacon
1 tablespoon unsalted butter, plus for brushing the pan
3 teaspoons kosher salt
Freshly ground black pepper
2 medium red potatoes, diced (about 8 ounces or 2 cups)
2 cloves smashed garlic
2 sprigs fresh thyme
6 large eggs, beaten
1 1/2 cups half-and-half
6 ounces Jarlsberg Swiss cheese, grated (about 2 cups)
1/2 teaspoon freshly grated nutmeg
Preheat the oven 325 degrees F. Butter an 8-by-8-inch square glass
casserole dish. Halve the leeks lengthwise, and then cut them
crosswise
into half circles (There should be about 1 3/4 cups.). Put the cut
leeks in the basket of a salad spinner, or a colander set in a bowl,
and fill with water. Swish the leeks around to flush out any grit.
Lift the basket from water--don't pour the water off or you will pour
any grit right back over the leeks.
Heat a medium skillet over medium heat and fry the bacon until
crispy,
about 5 minutes. Transfer the bacon to a paper towel-lined plate
to cool, then crumble. Discard all but 1 tablespoon of the pan
drippings,
add the butter and leeks, and season with 1/2 teaspoon salt and some
pepper. Cook until tender, about 10 minutes.
Meanwhile, put the potatoes in a small saucepan with the garlic,
thyme,
and 1 1/2 teaspoons of salt and water, to cover. Bring to a boil
over
high heat, then drain. Discard the thyme and garlic and add potatoes
to
the leeks.
In a medium bowl whisk together the eggs and half-and-half, then
stir
in the leek mixture, 1 cup of the cheese, the bacon, and nutmeg.
Season
with 1 teaspoon of salt and some pepper. Transfer the mixture to the
prepared dish, cover with foil and bake until just set but still moist,
about 55 minutes. Remove from the oven and set aside.
Position a rack in the upper part of the oven and preheat the
broiler.
Scatter the remaining 1 cup cheese over the casserole and broil
until
the cheese browns, about 3 minutes. Set aside for 5 to 10 minutes
before serving. Unmold or serve from baking dish.