1 1/2 cups all-purpose flour
1/2 cup sugar
1/2 cup butter, cut into 1" pieces
1 egg, slightly beaten
1 egg white, slightly beaten
12 ounces cream cheese
1/3 cup sour cream
1/2 cup sugar
1 1/2 teaspoons grated orange rind
3 tablespoons orange juice
2 cups frozen whole blackberries
6 tablespoons sugar
1 1/2 tablespoons cornstarch and
1 1/2 tablespoons cold water
For crust: In large mixing bowl combine flour, sugar and butter. Beat at medium speed, scraping bowl often until mixture is crumblyâ€” 2 to 3 minutes. (If using food processor, combine same ingredients in processor bowl, making sure butter is cold. Pulse 10-15 times. Remove to mixer bowl.) Make well in center of flour mixture and pour in egg, reserving egg white for later. Blend with fork until incorporated thoroughly. Mixture will be very dry. Press dough to 1/4" thickness on bottom and sides of 10" tart pan with removable bottom. Chill for 1 hour. Heat oven to 400 degrees F. Brush crust with beaten egg white and bake 15 to 20 minutes or until golden brown. Cool.
For filling: Beat together softened cream cheese with sour cream. Add sugar, grated rind and juice and beat until smooth. Spread evenly over prepared crust and refrigerate.
For purÃ©e: Rinse processor. Place berries in bowl and process until purÃ©ed. Place in saucepan and cook on medium heat 2 to 3 minutes. Add sugar and continue to cook another 5 minutes. Gradually add cornstarch mixture to thicken. Cool.
Pour cooled purÃ©e over filling. Just before serving, garnish by placing fresh or partially thawed individual berries over top. Refrigerate until serving time.
Just before serving, remove sides of pan. Best when served same day.