Blueberry And Blackberry Galette With Cornmeal Crust

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   ["Pastry: Lightly spoon flour into measuring cups and level with a knife. Combine flour and next 3 ingredients in a food processor; pulse two times. Add butter to flour mixture; pulse 4 to 5 times or til mixture resembles coarse meal. With processor on, slowly add buttermilk through chute; process just until dough forms into a ball. Gently press dough into a 4"" circle on plastic wrap; cover. Chill 30 minute.", "Preheat oven to 350.", "Unwrap dough and place on a sheet of parchment. Roll dough into a 15"" circle. Place dough and parchment on a baking sheet.", "To prepare filling, combine berries and next 3 ingredients in a medium bowl; toss gently to coat. Arrange berry mixture in center of dough, leaving a 2"" border. Fold edges of dough toward center, pressing gently to seal (dough will only partially cover berries).", "Combine skim milk with the egg white in a small bowl. Brush dough with milk mixture and sprinkle with turbinado sugar. Bake at 350 for 1 hour or until pastry is golden. Let stand 30 min; cut into wedges."]

* Per serving · 4 servings · Values may vary.