01 -
Preheat oven to 350°F and line baking sheets with parchment paper.
02 -
Cream butter and sugar together until light and fluffy. Add the egg and mix until well combined.
03 -
In a separate bowl, whisk together flour, baking powder, and salt.
04 -
Gradually add the dry ingredients to the wet mixture. Divide dough into portions and add Jello powder to each portion for different colors/flavors, mixing until evenly colored.
05 -
Roll dough into 1-inch balls, place on baking sheets, and flatten slightly with the bottom of a glass.
06 -
Bake for 8-10 minutes, or until the edges are set. Cool cookies on wire racks.