Ham Spinach and Gruyére Quiche

2 cups all-purpose flour
1/4 teaspoon kosher salt
8 tablespoons unsalted butter (1 stick), cold and cubed
1/4 cup cold water

Egg Filling:
1 teaspoon olive oil
3 handfuls of spinach
4 large eggs
1/2 cup heavy cream
1/2 cup whole milk
1/2 teaspoon salt
1/2 teaspoon freshly ground pepper
1/2 cup cubed ham (sliced to a 1/4-inch thickness)
1/2 cup cubed Gruyére

1. In a medium bowl, mix the flour and salt together. Working quickly, and using your fingers, add the cubed butter to the flour mixture and break up until butter is in pea-size bits. (Do not overwork the dough or it will become tough.) Make a well in the center of the mixture, pour in 1/4 cup cold water, and incorporate it into the mixture with the fingers until it is just moistened and comes together forming a ball. Note: If you find it to be too dry, add a tablespoon at a time until it comes together. Wrap the disc of dough in plastic and place in the refrigerator for 30 minutes.

2. Meanwhile, heat the olive oil over medium heat. Add the handfuls of spinach and cook until wilted. Drain in a colander (or on a handful or paper towels) and set aside.

3. Pre-heat oven to 350F. In a medium bowl beat eggs together with cream, milk, salt and pepper. 

4. On a lightly floured work surface, roll out dough to a 12-inch circle (or just a bit bigger than your tart shell--mine was 9.5 inches). Fold the dough in half, place in a pie pan, and unfold to fit the pan. Gently press the inside bottom edges of the dough against the sides of the tart pan to eliminate any air bubbles. Roll the rolling pin across the top surface of the tart shell to cut off the crusts' edges.

5. To the bottom of the tart shell, add the wilted spinach, cubed cheese and ham. Pour 3/4 of the egg mixture over top and transfer to a baking sheet. Place in oven on rack and top off with the remaining egg mixture (this way it won't spill over!).

6. Bake for 50 minutes to an hour. The top of the quiche will be puffed and golden brown. Remove from oven and let cool slightly until serving. It's delicious warm or at room temperature.

Recipe adapted from this Jacques Pepin video