Ingredients
For the crust
6 oz. (1-1/3 cups) unbleached all-purpose flour; more for rolling
4 oz. (1/2 cup) cold unsalted butter, cut into small cubes
1 tsp. granulated sugar
1/2 tsp. table salt
1 large egg yolk, lightly beaten
For the filling
2 lb. medium parsnips, peeled, cored, and cut into...