1 cup all purpose flour
1/2 cup unsweetened cocoa powder
1/2 cup crushed graham cracker crumbs
1/3 cup granulated sugar
3/4 teaspoon baking powder
1/4 teaspoon salt
1/4 cup unsalted butter, melted
1/2 of a (7 ounce) jar marshmallow cream
1 large egg
1/2 teaspoon vanilla extract
3/4 cup chopped milk chocolate
1/2 cup white chocolate chips
1/2 cup crushed graham crackers (leave slightly chunky)
Heat oven to 325 degrees F. Coat a cookie sheet with cooking spray.
In a large mixing bowl, whisk together flour, cocoa powder, graham cracker crumbs, sugar, baking powder and salt. In an additional large mixing bowl, whisk together butter, marshmallow cream, egg and vanilla until well combined; stir in dry ingredients until a stiff dough forms. Stir in milk chocolate until combined.
Dump dough onto cookie sheet and form two (about 5 inches in length) logs. Bake 30 minutes. Remove cookie sheet from oven and cool 30 minutes. Reduce oven temperature to 300 degrees F.
Transfer logs to a cutting board and diagonally cut into (1/2 inch thick) slices. Place on cookie sheet; bake 10 minutes, flip, and bake an additional 10 minutes. Transfer to wire racks to cool.
Melt white chocolate in a small bowl in the microwave for 1 minute, stirring every 20 seconds until melted. Dip sides of biscotti in white chocolate, followed by graham cracker crumbs.
Makes about 1 1/2 dozen