St Patricks Shamrock Cookies (Printable Version)

Buttery shamrock sugar cookies decorated with smooth royal icing for festive occasions.

# Components:

→ For the 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

→ For the 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

→ For Decorating

13 - Sprinkles or edible glitter, optional

# 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 if using; mix until fully 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 refrigerate for at least 1 hour.
06 - Preheat oven to 350°F. Line baking sheets with parchment paper.
07 - Roll dough 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.
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 buttery and tender without being finicky, so even if you're not a seasoned baker, you'll nail these.
  • Royal icing creates that smooth, glossy finish that looks fancy but feels completely manageable once you get the hang of it.
  • They're the kind of cookies that make people ask for the recipe, which always feels nice.
02 -
  • The most common mistake is decorating cookies that aren't completely cool; warm cookies will absorb the icing and look dull instead of glossy and smooth.
  • Royal icing thickens as it sits, so if you're working slowly, keep a tiny spoon of water nearby to loosen it slightly—just a drop or two changes everything.
03 -
  • If your dough is sticky, chill it longer; there's no such thing as over-chilling, and cold dough is always easier to work with.
  • Room temperature butter beats cold butter every single time—set it out thirty minutes before you start, and your creaming process will go faster and smoother.
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