How to make it

1. In a medium bowl, whisk together the flour, baking powder, and salt. Set aside.
2. In a large mixing bowl, cream the softened butter and granulated sugar together until light and fluffy.
3. Add the egg and vanilla extract to the butter mixture, mixing until well combined.
4. Gradually add the dry ingredients to the wet ingredients, mixing until a dough forms.
5. Divide the dough in half, flatten into discs, and wrap in plastic wrap. Chill in the refrigerator for at least 1 hour.
6. Preheat the oven to 350°F (175°C) and line baking sheets with parchment paper.
7. Roll out the chilled dough on a lightly floured surface to about 1/4 inch (6 mm) thickness.
8. Cut out cookies using Christmas-shaped cookie cutters and place them on the prepared baking sheets.
9. Bake the cookies in the preheated oven for 8-10 minutes, or until the edges are lightly golden.
10. Transfer the cookies to a cooling rack to cool completely before frosting.
11. To make the frosting, beat together the powdered sugar, softened butter, milk, and vanilla extract until smooth and creamy.
12. Divide the frosting into separate bowls and tint with food coloring as desired.
13. Frost the cooled cookies using a spoon or offset spatula, decorating with festive designs.