In a large mixing bowl, beat butter with granulated sugar. Add cocoa powder and egg, beating until combined. Mix in heavy cream until fully blended. Add flour, baking powder, and red food coloring, stir until combined.
Line a 15x10x1 inch baking sheet with parchment paper. Divide dough in half and pat each portion into a 9x2.5 inch rectangle. Bake at 350°F for 25 minutes. Remove and slice each rectangle into 9 slices. Stand slices on one side and bake 10 minutes. Flip and bake an additional 10 minutes. Cool completely.
Whisk together powdered sugar, cream cheese, and heavy cream in a small bowl until smooth. Spread glaze over each biscotti slice and sprinkle with mini chocolate chips. Let glaze set for about 15 minutes before serving. Enjoy!
Notes
This crunchy red velvet biscotti pairs perfectly with coffee or tea and is great for gifting during the holidays.