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A photo of light and soft sugar cookies in the shape of shamrocks, dusted with green icing powder on top.

Easy St. Patrick’s Day Cookies

Celebrate St. Patrick’s Day with these festive, buttery sugar cookies topped with vibrant green icing and sprinkles. Perfect for parties, gifting, or a fun baking project with kids.
Prep Time 15 minutes
Cook Time 1 hour
1 hour 40 minutes
Total Time 3 hours
Calories 120 kcal

Ingredients
  

For the Cookies

  • 1 cup 2 sticks unsalted butter, softened
  • 1 cup granulated sugar
  • 1 large egg room temperature
  • 1 tsp vanilla extract
  • 3 cups all-purpose flour
  • ½ tsp baking powder
  • ¼ tsp salt
  • Green gel food coloring

For the Icing

  • 2 cups powdered sugar
  • 2 –3 tbsp milk
  • 1 tsp vanilla extract
  • Green gel food coloring
  • Sprinkles green, gold, rainbow

Instructions
 

Make the Dough

  • Cream Butter + Sugar: In a large bowl, beat butter and sugar until light and fluffy (2–3 mins).
  • Add Egg + Vanilla: Mix in egg and vanilla until combined.
  • Dry Ingredients: In a separate bowl, whisk flour, baking powder, and salt. Gradually add to butter mixture, mixing until just combined.
  • Color the Dough: Divide dough in half. Add green gel food coloring to one half, kneading until evenly colored.
  • Chill: Wrap dough in plastic and refrigerate 1 hour.

Bake the Cookies

  • Preheat Oven: 350°F (175°C). Line baking sheets with parchment paper.
  • Roll Dough: On a floured surface, roll dough to ¼-inch thickness. Cut into shamrocks or desired shapes.
  • Bake: 8–10 mins, until edges are lightly golden. Cool completely on a wire rack.

Make the Icing

  • Mix: Whisk powdered sugar, milk, and vanilla until smooth. Add green food coloring.
  • Decorate: Outline cookies with thicker icing, then “flood” with thinner icing. Add sprinkles immediately.
  • Dry: Let icing set completely (1–2 hours).