Crumbl Churro Cinnamon Buttercream (Printer-Friendly)

Soft cinnamon sugar cookies with creamy cinnamon buttercream topping and warm spiced flavors.

# What You’ll Need:

→ Cookie Dough

01 - 1 cup unsalted butter, softened
02 - 1 cup brown sugar, packed
03 - ½ cup granulated sugar
04 - 1 large egg
05 - 1 large egg yolk
06 - 1 teaspoon vanilla extract
07 - 1 teaspoon fresh lemon juice
08 - 2 ¾ cups all-purpose flour
09 - 2 tablespoons cornstarch
10 - 1 teaspoon baking powder
11 - ½ teaspoon baking soda
12 - 2 teaspoons ground cinnamon
13 - ½ teaspoon salt

→ Cinnamon Sugar Coating

14 - ¼ cup granulated sugar
15 - 1 tablespoon ground cinnamon

→ Cinnamon Buttercream

16 - ½ cup unsalted butter, softened
17 - 2 cups powdered sugar, sifted
18 - 2 teaspoons ground cinnamon
19 - 2 tablespoons heavy cream
20 - ½ teaspoon vanilla extract

# Steps to Make This:

01 - In a large bowl, beat the softened butter with brown sugar and granulated sugar until light and fluffy, about 3 minutes.
02 - Incorporate the egg, egg yolk, vanilla extract, and lemon juice into the creamed butter mixture. Mix until thoroughly combined.
03 - In a separate bowl, whisk together flour, cornstarch, baking powder, baking soda, cinnamon, and salt.
04 - Gradually add the dry ingredients to the wet ingredients, stirring just until no dry flour remains. Avoid overmixing to keep cookies tender.
05 - Mix granulated sugar and cinnamon in a shallow bowl for rolling the cookie dough balls.
06 - Scoop 2.5 tablespoons of dough per cookie, roll each ball in the cinnamon sugar mixture to coat evenly, and place on a parchment-lined baking sheet about 2 inches apart.
07 - Bake in a preheated oven at 350°F (177°C) for 10-12 minutes until edges are set and centers appear slightly underbaked.
08 - Allow cookies to rest on the baking sheet for 5 minutes before transferring to a wire rack to cool completely.
09 - Beat softened butter until smooth, then slowly add powdered sugar and cinnamon. Mix in heavy cream and vanilla extract until light and fluffy.
10 - Pipe or spread cinnamon buttercream onto cooled cookies, then sprinkle additional cinnamon sugar on top for garnish.

# Additional Notes:

01 - Use room-temperature ingredients to achieve the best texture and even mixing.
02 - Avoid overmixing after adding flour to maintain chewy and tender cookies.
03 - Allow cookies to cool fully before frosting to prevent buttercream from melting.
04 - For smaller cookies, reduce dough portion size to 2 tablespoons and decrease baking time by 2 to 3 minutes.
05 - Store cookies in airtight containers: at room temperature up to 3 days, refrigerated up to 7 days, or frozen for up to 2 months.