Go Back

Black & White Half Moon Cookies

A cake mix is transformed into the infamous Black & White Cookie from the bakeries of New York but from the comfort of your home.

Course Dessert
Prep Time 1 hour
Cook Time 45 minutes
Total Time 1 hour 45 minutes



  • 1-15.25 oz. box vanilla cake mix
  • 1/2 cup butter {softened}
  • 3 egg whites
  • 1/4 cup sour cream


  • 3 cups powdered sugar
  • 3 1/2 tbsp milk
  • 1 tbsp corn syrup
  • 1/2 tsp vanilla
  • 1/4 tsp salt
  • 1 1/2 tbsp cocoa powder



  1. Preheat oven to 350° and cover baking sheets with silicone liners or parchment paper.

  2. In a medium bowl combine cake mix, butter, eggs and sour cream. Using a hand held mixer {or mix by hand}, mix the ingredients until just combined. There may be small bits of butter in the dough.

  3. Scoop dough onto a parchment lined baking sheet using a medium cookie scoop. Refrigerate the dough scoops for at least 30 minutes.

  4. Once chilled, add cookie scoops to a cookie sheet and bake for 11-13 minutes or until the edges and top of the cookie are set and the top is starting to crack. Remove from oven and allow the cookies to cool completely on the baking sheet. Continue until all of the cookies are baked.


  1. Combine the icing ingredients {minus the cocoa} and whisk until smooth. You want the icing to be thick enough to stay on the cookie but thin enough to spread. Adjust by adding more powdered sugar or milk.

  2. Divide the icing into two separate bowls. In one of the bowls add the cocoa and whisk. You will have a bowl of vanilla icing and a bowl of chocolate.

  3. Turn the cookies over onto their tops because the bottom of these cookies are what we will be icing and will become the top of the cookie.

  4. Spread vanilla icing onto half of the cookies– the flat side. Spread chocolate icing onto other half and allow the icing to set completely, about 1 hour, before serving.

  5. Store your half moon cookies in an air tight container once the icing is set for up to 4 days or freeze {without icing} for up to 3 months.