01 -
Preheat oven to 350°F (175°C) and line baking sheets with parchment paper.
02 -
Whisk together flour, baking powder, and salt in a medium bowl.
03 -
Beat butter and sugar until light and fluffy. Add egg and vanilla extract, mixing until well combined.
04 -
Gradually mix dry ingredients into wet mixture until just combined.
05 -
Divide dough into three portions. Leave one plain, color one red, and one green. Roll each into rectangles, stack, and roll into a log.
06 -
Slice log into cookies and bake 10-12 minutes until edges start to golden. Cool on sheet briefly before transferring to wire rack.