Ingredients
Method
- Preheat oven to 350°F and line baking sheets with foil or parchment paper.
- Whisk flour, baking soda, salt, and cream of tartar in a bowl and set aside.
- Cream butter until smooth, then add sugar and beat until light and fluffy.
- Add egg and mix to combine, then add cocoa powder, red food coloring, and vanilla.
- Add dry ingredients and mix just until combined.
- Form dough into 3 oz balls and place four cookies per baking sheet.
- Bake for 8 minutes until puffed, then lift and bang pan against oven rack.
- Repeat pan-banging every 1–2 minutes until cookies have rippled edges.
- Bake 13–16 minutes total until edges are set and centers are soft.
- Cool cookies completely on racks.
- Mix cream cheese, butter, vanilla, salt, water, and powdered sugar until smooth.
- Ice cooled cookies and finish with sprinkles.
Notes
For best rippled edges, bake one pan at a time and bang the pan firmly. Cookies must be completely cool before icing.
