St. Patricks Shamrock Sugar (Printable)

Buttery shamrock sugar cookies decorated with smooth royal icing, ideal for festive gatherings and celebrations.

# What You'll Need:

→ Sugar Cookies

01 - 2 1/2 cups all-purpose flour
02 - 1/2 teaspoon baking powder
03 - 1/4 teaspoon salt
04 - 3/4 cup unsalted butter, softened
05 - 1 cup granulated sugar
06 - 1 large egg
07 - 2 teaspoons pure vanilla extract
08 - 1/2 teaspoon almond extract

→ Royal Icing

09 - 3 cups powdered sugar, sifted
10 - 2 large egg whites or 4 tablespoons meringue powder plus 6 tablespoons water
11 - 1/2 teaspoon vanilla extract or lemon juice
12 - Green gel food coloring

→ Decorating

13 - Sprinkles or edible glitter

# Directions:

01 - In a medium bowl, whisk together flour, baking powder, and salt. Set aside.
02 - In a large bowl, beat the butter and sugar until light and fluffy, approximately 2 to 3 minutes.
03 - Add the egg, vanilla extract, and almond extract; mix until combined.
04 - Gradually add the dry ingredients to the wet ingredients, mixing just until incorporated.
05 - Divide dough in half, shape into disks, wrap in plastic wrap, and chill for at least 1 hour.
06 - Preheat oven to 350°F. Line baking sheets with parchment paper.
07 - Roll dough out on a lightly floured surface to 1/4 inch thickness. Cut out shamrock shapes and place on prepared baking sheets.
08 - Bake for 9 to 11 minutes, or until edges are just beginning to turn golden. Cool on the baking sheet for 5 minutes, then transfer to a wire rack to cool completely.
09 - In a large bowl, beat together powdered sugar, egg whites or meringue powder with water, and vanilla or lemon juice until stiff peaks form and the icing is glossy, approximately 5 minutes.
10 - Divide icing into bowls and tint with green gel food coloring as desired. Transfer icing to piping bags fitted with small round tips.
11 - Outline and flood cooled cookies with icing. Decorate with sprinkles or glitter if desired. Let icing set for at least 1 hour before serving or packaging.

# Expert Tips:

01 -
  • The dough is forgiving and stays soft enough to cut cleanly without cracking or spreading, even if you're not a confident baker.
  • Royal icing sounds intimidating but once you've beaten it to that glossy peak, you'll understand why people get addicted to piping and decorating.
  • These cookies stay perfectly chewy inside for days, making them ideal for gifting or enjoying throughout the week.
02 -
  • Cold dough is your secret weapon—it prevents cookies from spreading too thin and losing their shamrock shape in the oven.
  • Royal icing with real egg whites tastes slightly better but carries a tiny food safety concern if anyone immunocompromised will eat them; meringue powder eliminates that worry entirely.
  • Sifting powdered sugar feels fussy until you taste the difference in smooth, professional-looking icing.
03 -
  • Keep your dough cold throughout the process—even pulling out just half of it to work with while the rest stays in the fridge prevents spreading and keeps edges sharp.
  • If royal icing becomes too thick while piping, add water one tiny drop at a time until it flows again without becoming runny.
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