Blackberry-Raspberry Pie

Preparation

1. For crust:

   Step 1

   Combine first 5 ingredients in processor; blend 5 seconds. Add butter and blend, using on/off turns, until mixture resembles coarse meal. Add 5 tablespoons water and vinegar. Using on/off turns, blend until moist clumps form, adding more water if dough is dry. Gather dough into ball; divide in half. Shape each half into disk. Wrap in plastic and chill at least 1 hour and up to 1 day.

2. For filling:

   Step 2

   Preheat oven to 400°F. Spray 9-inch-diameter glass baking dish with nonstick spray. Whisk 3/4 cup sugar and cornstarch in large bowl to blend. Add berries and toss to coat. Let stand 10 minutes, tossing occasionally.

3. Step 3

   Roll out 1 dough disk on lightly floured surface to 12-inch round; transfer to prepared pie dish. Spoon filling into dough-lined dish. Roll out second dough disk to 13-inch round. Drape dough over filling, and trim overhang to 1/2 inch. Press edges together to seal; fold overhang under and crimp decoratively. Cut several small slashes in top crust to vent. Sprinkle with additional sugar, if desired.

   Step 4

   Bake until crust is golden and filling is bubbling, about 50 minutes; cool 30 minutes. Serve warm or at room temperature.