Combine flour, cinnamon, baking powder, and salt in a bowl.

Cream butter and sugar together using an electric mixture in a second bowl until fluffy. Add eggs 1 at a time and beat well after each addition. Mix in vanilla extract. Add flour mixture to butter mixture and mix everything by hand into a smooth dough.

Divide dough into 4 pieces and flatten into 1-inch thick rounds. Cover with plastic wrap and chill for 1 hour.

Preheat the oven to 350 degrees F (175 degrees C). Line 2 baking sheets with parchment paper.

On a lightly floured surface, roll dough to 1/4-inch thickness and cut out desired shapes with cookie cutters. Place cookies on the prepared baking sheets.

Bake in the preheated oven until lightly browned, 8 to 10 minutes. Cool on wire racks and decorate as desired.