Preheat oven to 350 degrees Fahrenheit and line a baking sheet with parchment paper or a silicone baking mat.
Mix all ingredients for the red dough in a bowl until well combined and the ingredients for the white dough in another bowl until well combined.
Roll out the dough onto a floured surface and cut into rectangular planks.
Stack, alternating colors, and press.
Slice 1/2 inch thick and place on prepared baking sheet.
Bake for 10 to 15 minutes. Cool and refrigerate.
Makes 1 to 2 dozen treats.