Birthday Sugar Cookie Bars
These Birthday Sugar Cookie Bars are for more than just birthdays! These soft, buttery sugar cookie bars are topped with creamy vanilla buttercream and colorful sprinkles. They capture all the classic flavors of your favorite sugar cookies in a simple, easy-to-slice bar. Perfect for birthdays, parties, or any time you want a sweet treat!
Servings: 12 bars
Calories: 806kcal
Ingredients
Sugar Cookie Bars
- 1 ½ cups (3 sticks / 340 g) unsalted butter, room temperature
- 2 cups (400 g) granulated sugar
- 2 large eggs, room temperature
- 2 large egg yolks
- 1 tablespoon vanilla extract
- 1 teaspoon almond extract
- 4 cups (500 g) all-purpose flour
- 1 teaspoon kosher salt
- 1 teaspoon baking powder
Buttercream Frosting
- 1 cup (2 sticks / 227 g) unsalted butter, room temperature
- 4 cups (454 g) confectioners' sugar
- 1 teaspoon vanilla extract
- 1 pinch kosher salt
- 1-3 tablespoons whole milk, as needed
- rainbow sprinkles, for topping
Instructions
Bars
- Preheat oven to 350°F. Spray a 9×13-inch baking dish with nonstick cooking spray.
- In the bowl of a stand mixer, cream together the butter and sugar until well-combined (about 2 minutes).
- With the mixer on low, add in the eggs and egg yolks, mixing until well incorporated.
- Turn off the mixer and scrape the sides of the bowl.
- With the mixer back on low, add the vanilla and almond extract.
- In a separate bowl, whisk together the flour, salt, and baking powder.
- With the mixer on low, gradually add the flour mixture, about 1 cup at a time, mixing until just combined after each addition.
- Press the batter into the prepared baking dish.
- Bake for 20–25 minutes, or until the edges are lightly golden and a toothpick inserted in the center comes out clean.
- Remove from the oven and let cool as you make the buttercream frosting.
Buttercream Frosting
- Combine the butter, sugar, vanilla, and salt in the bowl of a stand mixer fitted with a paddle attachment.
- Start mixing on low speed until the sugar is incorporated with the butter. Increase the mixing speed to high and beat until smooth and fluffy, about 2 minutes.
- Adjust the consistency with milk as needed.
- Spread buttercream over the cooled sugar cookie bars and top with sprinkles.
Nutrition
Serving: 1bar with frosting | Calories: 806kcal