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5 from 1 vote

Iced Thumbprint Cookies

These simple Iced Thumbprint Cookies are filled with homemade Royal Icing and topped with Christmas-themed sprinkles!
Prep Time20 mins
Cook Time15 mins
Chill Time30 mins
Course: Dessert
Cuisine: American
Servings: 12
Author: Lara

Ingredients

Thumbprint Cookies

  • 125 g all-purpose flour (1 cup)
  • ¼ tsp. salt
  • 112 g unsalted butter softened (½ cup)
  • 70 g granulated sugar or caster sugar (⅓ cup)
  • 1 tsp. vanilla extract
  • 1 egg yolk

Royal Icing Filling

  • 80 g powdered sugar (⅔ cup)
  • 2 tsp. meringue powder
  • 2 tbsp. water room temperature
  • 2 tbsp. sprinkles optional

Instructions

  • Sift and mix flour and salt in a medium sized bowl and set aside.
  • Place butter and sugar in a large mixing bowl of a stand mixer fitted with the paddle attachment. Mix on medium speed until mixture is pale and fluffy. Use a spatula to scrape any ingredients from the side of the bowl.
  • Add egg yolk and vanilla extract and mix for 1-2 minutes.
  • Add dry ingredients and mix until cookie dough is formed.
  • Divide cookie dough into 12 parts. Rolls each cookie dough into a ball. Transfer to a plate with parchment paper and chill dough for at least 30 minutes (up to overnight).
  • Preheat oven to 175°C (350F) and line a large baking sheet with parchment paper.
  • Place each cookie ball on the baking sheet, leaving a 2-inch space between each one. Use your thumb or the round back of a measuring spoon to make an indentation in the center of each cookie ball.
  • Bake for 11-14 minutes or until the edges start to turn golden brown. Cookies will be very soft when out of the oven.
  • Allow to cool for a few minutes on the baking sheet, then transfer to a wire rack to cool completely.
  • To make the royal icing: Place powdered sugar and meringue powder in a medium sized bowl. Stir in 2 tbsp. of room temperature water and mix for 1-2 minutes (you can use a handheld mixer or a stand mixer with the whisk attachment for this step).
  • Spoon icing into each thumbprint cookie, filling all the way to the top. Leave to set for 3-4 minutes, then top with your favourite sprinkles. Leave cookies to set for 20-30 minutes before serving.