# What You'll Need:
→ For the Dough
01 - 2 1/2 cups all-purpose flour
02 - 3/4 teaspoon baking powder
03 - 1/4 teaspoon salt
04 - 1 cup unsalted butter, softened
05 - 1 cup granulated sugar
06 - 1 large egg
07 - 2 teaspoons pure vanilla extract
→ For Coloring and Decoration
08 - Red gel food coloring
09 - Green gel food coloring
10 - 1/3 cup colored sanding sugar (red and green), optional
# How to Make It:
01 - Whisk together the all-purpose flour, baking powder, and salt in a medium bowl; set aside.
02 - Beat the softened butter and granulated sugar in a large bowl until light and fluffy, approximately 2 to 3 minutes.
03 - Add the large egg and vanilla extract to the butter mixture and mix until fully combined.
04 - Gradually mix in the flour mixture until just incorporated; avoid overmixing.
05 - Portion the dough evenly into three parts; leave one plain, tint one with red gel food coloring and the other with green until colors are uniform.
06 - Roll each dough portion between sheets of parchment paper into 9 by 6 inch rectangles to uniform thickness; chill for 20 minutes.
07 - Layer the dough rectangles with the plain on bottom, red in the middle, and green on top; trim edges to align precisely.
08 - Roll tightly from the long side into a log, removing parchment as you proceed; optionally roll in colored sanding sugar for decoration.
09 - Wrap the log in plastic wrap and refrigerate for at least 2 hours until firm.
10 - Heat oven to 350°F and line baking sheets with parchment paper.
11 - Cut the chilled log into 1/4-inch rounds and place on baking sheets spaced 2 inches apart.
12 - Bake for 9 to 11 minutes until just set without browning; cool on sheets for 3 minutes then transfer to wire racks to cool fully.