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–+ servings
stack of two sugar cookie squares with frosting and sprinkles
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4.88 from 8 votes

Frosted Sugar Cookie Bars

These EASY sugar cookie bars are baked in a pan and topped with a delicious fluffy frosting and sprinkles. Perfect for all celebrations!
Prep Time20 minutes
Cook Time20 minutes
Cool Time1 hour
Total Time1 hour 40 minutes
Course: Cookies, Dessert
Cuisine: American
Keyword: sugar cookie bars
Servings: 24 bars
Calories: 289kcal
Author: Nikki Gladd

Equipment

  • 9x13 baking dish
  • Stand mixer
  • Rubber spatula
  • Parchment paper

Ingredients

For the cookie dough:

  • 1 cup unsalted butter , room temperature
  • 1 cup granulated sugar
  • 1 large egg
  • 2 teaspoons vanilla extract
  • 3 cups all-purpose flour
  • 2 teaspoons baking powder
  • 1 teaspoon baking soda
  • ½ teaspoon salt

For the fluffy vanilla frosting:

  • 1 cup unsalted butter , room temperature
  • 3 cups powdered sugar
  • 3 tablespoons milk
  • 2 teaspoons vanilla extract

Instructions

For the cookie dough:

  • Preheat oven to 350°F. Line 9x13-inch baking dish with parchment paper.
  • In a large bowl, cream the butter and sugar on medium high speed until light and fluffy, about 2 minutes. Stir in the egg and vanilla. With the mixer on low speed, add the flour, baking powder, baking soda and salt. Continue to mix on low speed just until dough forms. Do not over mix.
  • Evenly press dough into prepared pan. Bake 20 to 25 minutes until just golden and baked through. Time may vary but do not over bake! Remove from oven and let cool completely.

For the fluffy vanilla frosting:

  • In large bowl, beat butter until light and creamy about 2 minutes. With mixer on low speed, stir in the sugar, milk and vanilla. Increase speed to high and beat 3 minutes until fluffy. Add more milk or sugar as needed to reach desired consistency.
  • Spread frosting over cooled cookie dough in pan. Top immediately with optional sprinkles. Cut into squares and serve.
  • Store covered in pan on countertop for up to 2 days or in the fridge for up to 5 days. If refrigerated, remove from fridge 1 hour before serving.

Notes

  • Add sprinkles for any occasion!
  • Baking time may vary depending on your oven and the type of baking dish you use. This recipe reflects using a nonstick metal baking pan. If you use a glass pan, you may need to bake longer.

Nutrition

Serving: 1square | Calories: 289kcal | Carbohydrates: 36g | Protein: 2g | Fat: 16g | Saturated Fat: 10g | Cholesterol: 49mg | Sodium: 167mg | Potassium: 60mg | Fiber: 1g | Sugar: 23g | Vitamin A: 487IU | Calcium: 25mg | Iron: 1mg