Ingredients

2 cups all-purpose flour
1/3 cup sugar
1/3 cup unsweetened cocoa powder
1 tablespoon baking powder
1/2 teaspoon salt
1 stick (1/2 cup) salted butter, chilled
1 large egg, beaten
1 teaspoon vanilla extract
1/2-3/4 cup heavy whipping cream
2/3 cup semi-sweet chocolate chips
2/3 cup white chocolate chips

Methods:

1: Preheat oven to 400 degrees F.
2: In a large bowl, whisk together flour,sugar,cocoa powder,baking powder, and salt.
3: With a pastry blender or knife,cut chilled butter into flour mixture to resemble coarse crumbs.
4: In a small bowl, combine egg, vanilla, and 1/2 cup of whipping cream.
5: Stir cream mixture into flour mixture. If needed, add up to 1/4 cup more whipping cream, until mixture is just moistened.
6: Stir in both chips, and than use hands to knead dough about 10 times.
7: Lightly flour a working surface. Pat dough into 8-inch circle. Cut circle into 12 wedges using a sharp knife.
8: Place each wedge 1 inch apart onto ungreased cookie sheet.
9: Bake 12-15 minutes or until set.Do not over bake.Let stand for 3 minutes before transferring to cooling surface.