Preheat your oven to 350°F (175°C). Prepare your baking sheets by lining them with parchment paper or leaving them ungreased.

Cream softened margarine and white sugar together in a large mixing bowl until light and fluffy, about 3 to 4 minutes.

Beat in the eggs one at a time, ensuring each is fully incorporated before adding the next.

Stir in vanilla extract gently with a spatula or wooden spoon.

In a separate medium bowl, whisk together all-purpose flour, baking powder, and salt.

Gradually mix the dry ingredients into the buttery mixture until just combined.

Roll dough into 1-inch balls and place them on ungreased baking sheets, spacing apart. Gently flatten the tops with the bottom of a glass.

Sprinkle red and green sugar sprinkles on top of each cookie dough ball.

Bake cookies for 8 to 10 minutes until edges are set and centers remain soft.

Let cookies cool on the baking sheets for about 3 to 5 minutes before transferring to a wire rack.