The rich, buttery pastry dough is easy and forgiving. Simply roll it out onto parchment paper with a lightly floured rolling pin, and then use the parchment to transfer it to a baking sheet. If you're lucky enough to find wild blueberries like the ones that grow in Maine, use them in this rustic summer tart.
Cooking Light JULY 2008
1. To prepare pastry, lightly spoon flour into dry measuring cups, and level with a knife. Combine flour and next 3 ingredients (through salt) in a food processor; pulse two times. Add butter to flour mixture; pulse 4 to 5 times or until mixture resembles coarse meal. With processor on, slowly add buttermilk through food chute; process just until dough forms a ball. Gently press dough into a 4-inch circle on plastic wrap; cover. Chill 30 minutes.
2. Preheat oven to 350°.
3. Unwrap and place dough on a sheet of parchment paper. Roll dough into a 15-inch circle. Place dough and parchment on a baking sheet.
4. To prepare filling, combine berries and next 3 ingredients (through juice) in a medium bowl; toss gently to coat. Arrange berry mixture in center of dough, leaving a 2-inch border. Fold edges of dough toward center, pressing gently to seal (dough will only partially cover berry mixture).
5. Combine fat-free milk and egg white in a small bowl, stirring well with a whisk. Brush dough with milk mixture; sprinkle turbinado sugar evenly over dough. Bake at 350° for 1 hour or until pastry is golden brown. Let stand 30 minutes; cut into wedges.
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