# Ingredient List:
→ 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
→ Coloring and Decoration
08 - Red gel food coloring
09 - Green gel food coloring
10 - 1/3 cup colored sanding sugar (red and green), optional
# Step-by-Step Instructions:
01 - Whisk together flour, baking powder, and salt in a medium bowl; set aside.
02 - Beat butter and sugar in a large bowl until light and fluffy, about 2 to 3 minutes.
03 - Incorporate the egg and vanilla extract; beat until combined.
04 - Gradually blend the flour mixture into the butter mixture until just combined.
05 - Separate dough into three equal parts; leave one plain, tint one red, and the other green until colors are uniform.
06 - Roll each portion between parchment sheets into 9-by-6-inch rectangles; chill for 20 minutes.
07 - Stack dough layers with plain at bottom, red middle, green top; trim edges to align.
08 - Roll stacked dough tightly from long side into a log, peeling parchment as you roll; optionally roll in colored sanding sugar.
09 - Wrap log in plastic wrap and chill at least 2 hours until firm.
10 - Preheat oven to 350°F and line baking sheets with parchment paper.
11 - Slice chilled log into 1/4-inch rounds and place on baking sheets spaced 2 inches apart.
12 - Bake for 9 to 11 minutes until set but not browned; cool 3 minutes on sheet, then transfer to wire rack to cool completely.
