Breakfast: Black Bottom Oatmeal Pie

Ingredients

1 1/4 cups unbleached all-purpose flour
1/2 teaspoon kosher salt
1 1/2 teaspoons granulated sugar
1/4 pound (1 stick) cold unsalted butter, cut into 1/2-inch pieces
1/2 cup cold water
2 tablespoons cider vinegar
1/2 cup ice
egg white glaze (1 egg white whisked with 1 teaspoon water)

Instructions

Stir the flour, salt, and sugar together in a large bowl. Add the butter pieces and coat with the flour mixture using a bench scraper or spatula. With a pastry blender, cut the butter into the flour mixture, working quickly until mostly pea-size pieces of butter remain (a few larger pieces are okay; be careful not to overblend).
Combine the water, cider vinegar, and ice in a large measuring cup or small bowl. Sprinkle 2 tablespoons of the ice water mixture over the flour mixture, and mix and cut it in with a bench scraper or spatula until it is fully incorporated. Add more of the ice water mixture, 1 to 2 tablespoons at a time, using the bench scraper or your hands (or both) to mix until the dough comes together in a ball, with some dry bits remaining. Squeeze and pinch with your fingertips to bring all of the dough together, sprinkling dry bits with more small drops of the ice water mixture, if necessary, to combine. Shape the dough into a flat disc, wrap in plastic, and refrigerate for at least 1 hour, preferably overnight, to give the crust time to mellow.
On a lightly floured work surface, roll out dough to form a round that is 2 to 3 inches larger than your pan, and about 1/8 inch in thickness. Transfer dough to pie pan and trim overhang to 1 to 1 1/2 inches. Transfer to freezer for 20 minutes. Position racks in bottom and middle racks and preheat over to 425 °F. When crust has been in freezer for 10 minutes, remove and line it tightly with aluminum foil.
Pour the pie weights or beans into the pan and spread them so they are concentrated more around the edge of the shell than in the center. Place the pan on the preheated baking sheet and bake for 20 minutes, until the crimped edges are set but not browned. Remove the pan and the baking sheet from the oven, lift out the foil and pie weights, and let the crust cool for a minute. Use a pastry brush to coat the bottom and sides with a thin layer of egg white glaze to moistureproof the crust. Return the pan, on the baking sheet, to the oven's middle rack and continue baking for 3 more minutes. Remove and cool completely before filling.