Place the measured shortening and butter on a saucer, and place in the freezer for 30 minutes.
Spoon the flour and salt into the work bowl of a food processor. Pulse briefly, just to blend. Add the cold shortening, and pulse just until it?s very coarsely chopped and somewhat integrated into the flour. Switch to the coarse grating disk, and feed the
Switch back to the metal blade, sprinkle the vinegar and 4 tablespoons of the water over the flour mixture, and pulse 4 or 5 times. If the dough doesn?t appear to be coming together, add the remaining 1 tablespoon of water, and pulse again. As soon as the
When you?re ready to make the quiche, remove the crust from the freezer, grate it using the food processor, and press it into your 9-inch pie pan. Cover it with plastic wrap, and put it in the freezer while you prepare the filling.
Place the spinach, cottage cheese, eggs, salt, flour, and cheese into the food processor bowl. Pulse briefly, until the mixture is well-combined but not pureed.
Scatter the chopped ham across the bottom of the prepared crust. Spoon the spinach filling on top. Stir the sour cream until it?s softened and spreadable, and spread it over the filling. Sprinkle with paprika.
Bake the quiche in a preheated 375°F oven for 50 to 55 minutes, until it appears set almost all the way to the center. A couple of cracks may develop across the top; that?s OK. Remove the quiche from the oven, and serve it warm, at room temperature, or ch