– Flour – Baking soda – Salt – Unsalted butter – Sugar – Eggs – Egg whites – Powder sugar – Cream of tartar – Vanilla – Gel food coloring – red & black
Cream the soft butter with the sugar until the combination is smooth to the touch, not grainy, in a mixing bowl.
Add eggs and vanilla and continue to mix. Sift the flour, baking soda, and salt together with a sifter.
Add the dry mixture to the wet mixture and continue mixing to make sure all ingredients are thoroughly blended.
Form the dough into a ball and wrap it in cling wrap, completely covering the entire dough ball.