St Patricks Shamrock Sugar Cookies (Printable)

Buttery shamrock sugar cookies finished with vibrant green royal icing for festive occasions.

# 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 - 1 teaspoon vanilla extract
08 - 1/2 teaspoon almond extract, optional

→ Green Royal Icing

09 - 2 cups powdered sugar, sifted
10 - 2 tablespoons meringue powder
11 - 3 to 4 tablespoons water, room temperature
12 - 1/2 teaspoon vanilla extract
13 - Green gel food coloring

# How to Make It:

01 - In a medium bowl, whisk together flour, baking powder, and salt. Set aside.
02 - In a large bowl, cream butter and sugar together with an electric mixer until light and fluffy, approximately 2 minutes.
03 - Beat in egg, vanilla extract, and almond extract if using until fully combined.
04 - Gradually add the dry ingredients to the wet ingredients, mixing just until the dough comes together.
05 - Divide the dough into two discs, wrap in plastic wrap, and refrigerate for at least 1 hour.
06 - Preheat oven to 350°F. Line baking sheets with parchment paper.
07 - On a lightly floured surface, roll out dough to 1/4-inch thickness.
08 - Cut out shamrock shapes using a cookie cutter. Place cookies 1 inch apart on prepared baking sheets.
09 - Bake for 8 to 10 minutes, or until edges are just beginning to turn golden. Let cool on the pan for 5 minutes, then transfer to a wire rack to cool completely.
10 - Combine powdered sugar and meringue powder in a bowl. Add water and vanilla, then beat with an electric mixer on low speed until smooth and glossy, 5 to 7 minutes.
11 - Add green gel food coloring and mix until desired shade is achieved.
12 - Transfer icing to a piping bag fitted with a small round tip. Outline and flood the cooled cookies. Allow icing to set for at least 1 hour before serving.

# Expert Advice:

01 -
  • The dough is forgiving enough that slightly imperfect shamrocks still look charming and intentional.
  • Royal icing transforms plain cookies into something that feels fancy without requiring any special skills.
  • They stay soft in the middle for days, which means you can make them ahead and not worry.
02 -
  • Royal icing that's too thick won't pipe smoothly, and icing that's too thin runs everywhere; you want it thick enough to hold a shape but loose enough to flow slightly when piped.
  • Room-temperature water matters more than you'd think because cold water makes the icing stiff and hard to work with.
03 -
  • Let your piping bag sit at room temperature while your cookies cool so the icing flows smoothly without clumping or cracking as you work.
  • If a shamrock design breaks while you're decorating, let the icing dry, then pipe over it again—nobody will ever know, and the second layer looks intentional and dimensional.
Go Back