-CRUST-
     1 c  Unbleached all purpose flour
   1/4 c  Sugar
     3 tb Unsweetened cocoa powder
   1/4 ts Salt
     6 tb Chilled unsalted butter; cut
          -into pieces
          ; (3/4 stick)
 1 1/2 tb Cold water
     1 lg Egg yolk
     6 tb Raspberry jam
FILLING
     1 c  Whipping cream
     4 oz Bittersweet; (not
          -unsweetened) or
          ; semisweet
          ; chocolate,
          ; finelychopped
     2    Baskets fresh raspberries;
          -(1/2-pint)
     1 ts Powdered sugar
     1 ts Unsweetened cocoa powder
For Crust:
 Combine flour, sugar, cocoa and salt in medium bowl. Add butter and
 rub in, using fingertips, until mixture resembles coarse meal. add
 water and egg yolk and mix in with fork until well incorporated.
 Gather dough into rectangle chill 20 minutes. (Can be prepared 4 days
 ahead. Let dough soften slightly at room temperature before rolling
 out.)
 Preheat oven to 375F. Butter and flour 13 3/4 x 4-inch rectangular
 pan with 1-inch-high sides and removable bottom. Roll out dough
 between 2 sheets of waxed paper to 15×6-inch rectangle. Peel off 1
 waxed paper sheet. Invert dough into prepared pan, press evenly to
 fit. Freeze until firm, about 10 minutes. Peel off second waxed paper
 sheet. Trim edges.
 Line crust with foil; fill with dried beans or pie weights. Bake until
 crust is set, about 12 minutes. Remove foil and beans. Bake until
 crust just begins to darken around edges, piercing with toothpick if
 crust bubbles, about 12 minutes longer. Remove from oven; maintain
 oven temperature. Spread jam over bottom of crust. Bake until jam is
 set, about 3 minutes. Transfer pan to rack; cool completely.
For Filling:
 Bring cream to boil in heavy small saucepan. Remove from heat. Add
 chocolate and whisk until melted and smooth. Transfer chocolate
 ganache to bowl and refrigerate until chilled but not firm, about 45
 minutes or less
 Using electric mixer, beat ganache until very thick and semifirm.
 Spread ganache over jam in crust. (Can be prepared 8 hours ahead.
 Refrigerate.) Arrange raspberries atop ganache. Stir powdered sugar
 and cocoa in bowl. Sift over tart.
Serves 6.
                 
                 Yields       
                1 servings                
