1/4 cup butter |
1 cup chocolate wafer crumbs |
3 (8 ounce) packages cream cheese |
1 1/4 cups sugar |
1 (8 ounce) package sour cream |
2 teaspoons vanilla extract |
1/2 cup cocoa |
2 tablespoons all-purpose flour |
3 eggs |
1/2 cup semi-sweet chocolate chips |
2 teaspoons shortening |