Chocolate and Vanilla Chip Biscotti

In a medium bowl, combine the flour, cocoa powder, and baking powder and mix well. In a large bowl, beat the granulated sugar, brown sugar, butter, and margarine until blended, then add the eggs and vanilla and beat well.

Gradually add the flour mixture to the wet ingredients and mix until a stiff dough forms. Stir in the vanilla baking chips.

With sprayed hands, divide the dough into three portions and shape each into a 7-inch log on the cookie sheets, spacing them well apart. Flatten each log to about a 7 x 3-inch rectangle.

Bake for 22 to 28 minutes, until set and lightly browned. Remove from the cookie sheets and cool on wire racks for 5 minutes.

Using a serrated knife, cut each rectangle crosswise into 1/2-inch slices. Stand the slices upright on the cookie sheets and bake for another 8 to 10 minutes, until crisp and dry. Cool completely on wire racks.