Chocolate Mascarpone Cheeseacke

INGREDIENTS

1 1/2 lb

cream cheese, at room temperature

3/4 cup

sugar

1/4 cup

flour

1/2 lb

mascarpone, at room temperature

eggs, at room temperature

1 tsp

vanilla

1/2 cup

sour cream

6 oz

semisweet or bittersweet chocolate, melted and warm

Chocolate cookie crumbs, optional