- 3 pounds confectioners' sugar
- 4 cups powdered milk
- 1 (1 pound) loaf processed cheese food (such as Velveeta®), cubed
- 1 pound butter, at room temperature
- 1 cup cocoa powder
- 1/4 cup chopped walnuts, or to taste (optional)
- 4 teaspoons vanilla extract
- Mix confectioners' sugar, powdered milk, processed cheese food, butter, cocoa powder, walnuts, and vanilla extract in a large bowl with a stand mixer using the dough hook attachment until mixture is blended. The mixture will seem dry at first; continue mixing until smooth.
- Press cheese mixture into a large baking sheet. Refrigerate until set, about 1 hour.