St Patricks Shamrock Cookies (Printable)

Buttery sugar cookies shaped like shamrocks with smooth green icing for festive occasions.

# What Goes In:

→ 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, optional

→ 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 - Shamrock-shaped cookie cutter
14 - Sprinkles or edible glitter, optional

# How to Make It:

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 if using; 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 mixture, 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.
11 - Transfer icing to piping bags fitted with small round tips. Outline and flood cooled cookies. 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 enough that slightly uneven shamrocks somehow look more homemade and appealing than perfect ones.
  • Royal icing is oddly therapeutic to mix and pipe, giving you that meditative feeling while making something genuinely impressive-looking.
  • These cookies stay fresh for days in an airtight container, so you can bake ahead and decorate the night before your gathering.
02 -
  • Never ice warm cookies—the icing will melt and slide right off, and you'll end up frustrated with a grainy mess instead of that glossy finish.
  • If your royal icing is too thick to pipe or too thin to hold peaks, add water by the teaspoon or powdered sugar by the tablespoon respectively; consistency matters more than you'd think.
03 -
  • A squeeze of lemon juice in the icing adds brightness and prevents that overly sweet aftertaste that sometimes lingers with all-sugar desserts.
  • Chill your dough between batches if your kitchen is warm; it makes the difference between cookies that hold their shape and shamrocks that blur into abstract shapes.
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