Food Coloring of choice
1. Preheat oven to 350 degrees. In a medium bowl, stir together the flour, baking soda, and salt; set aside.
3. Separate the dough into 2 or 3 zip top bags (I recommend the ones with the sliding zipper). Add 2-3 drops of food coloring to each bag and zip closed. Squish/knead each bag until the food coloring has blended into the dough. (This would be a fun step for kids to help with.) Place bags of dough in the freezer for about 10-15 minutes to let the butter reharden a bit.
4. Remove bags from freezer and cut a corner off of each bag. Squeeze out portions of dough and roll into walnut sized balls. Roll the balls in remaining 1/4 cup of sugar. Place cookies 2 inches apart onto cookie sheets lined with parchment paper and flatten slightly.
5. Bake for 8 to 10 minutes in the preheated oven, until lightly browned at the edges. Allow cookies to cool on baking sheet for 5 minutes before removing to a wire rack to cool completely.