Berries and Cream Chocolate Pie

Ingredients:

1-1/2 c all-purpose flour, sifted
1/4 c cocoa
1/4 c powdered sugar
1/2 tsp salt
1 stick unsalted butter, cold, cut into pea-sized pieces
A few Tbsp ice water
Vegetable shortening for greasing pan
8 oz mascarpone cheese
2 c heavy cream
1/3 c powdered sugar
1/2 tsp vanilla extract
About 3 c of your favorite berries, cut into large pieces (strawberries, blueberries, raspberries, blackberries, etc)

Course: dessert