Maple Sugar Tart Recipe
- 1 1/4 cups all-purpose flour
- 1/4 teaspoon salt
- 3/4 stick (6 tablespoons) cold unsalted butter, cut into 1/2-inch cubes
- 2 tablespoons cold vegetable shortening
- 2 to 4 tablespoons ice water
- 2 cups granulated maple sugar
- 1 cup heavy cream
- 1/2 cup walnuts (2 1/2 oz), chopped
- 2 large eggs
- Accompaniment: crème fraîche
- Special equipment: a 9- by 1-inch fluted round tart pan with removable bottom; pie weights or raw rice
- Whisk together flour and salt. Blend in butter and shortening with your fingertips or a pastry blender (or pulse in a food processor) until mixture resembles coarse meal with some small (roughly pea-size) lumps. Drizzle evenly with 2 tablespoons water and gently stir with a fork (or pulse in food processor) until incorporated. Gently squeeze a small handful: If it doesn't hold together, add more water, 1 tablespoon at a time, stirring (or pulsing) after each addition until incorporated and continuing to test. (Do not overwork dough, or pastry will be tough.)
- Turn dough out onto a work surface and divide into 4 portions. With heel of your hand, smear each portion once in a forward motion to help distribute fat. Gather dough and form it, rotating on work surface, into a disk. Chill dough, wrapped in plastic wrap, until firm, at least 1 hour.
- Preheat oven to 350°F.
- Roll out dough into a 12-inch round and fit into tart pan. Trim excess dough, leaving a 1/2-inch overhang, then fold overhang inward and press against side of pan to form a stronger edge. Prick bottom all over with a fork. Line bottom and side of pastry with foil and fill with pie weights.
- Bake in middle of oven 20 minutes, then carefully remove foil and weights and bake until golden, 10 to 15 minutes more. Remove shell from oven but leave oven on.
- Slowly bring sugar and cream to a boil in a 2- to 3-quart heavy saucepan over moderately low heat, stirring, until sugar is dissolved, then boil until thickened, about 10 minutes. Remove from heat and add nuts, then cool slightly.
- Whisk eggs in a bowl, then gradually whisk in nut mixture.
- Pour filling into warm baked pastry shell, then bake tart in middle of oven until filling is set, 25 to 30 minutes.