Go Back Email Link
+ servings
Close-up of soft and chewy frosted sugar cookie bar.
5 from 1 vote

Frosted Sugar Cookie Bars

Soft cookie bars are topped with a fluffy frosting and festive sprinkles. These Sugar Cookie Bars are a fun way to celebrate birthdays, holidays, or any occasion!
Prep Time20 minutes
Cook Time20 minutes
Cooling Time1 hour 30 minutes
Total Time2 hours 10 minutes
Course: Dessert Recipes
Cuisine: American
Keyword: sugar cookie cake bars
Servings: 12 large cookie bars
Calories: 414kcal

Ingredients

For the cookie bars

  • ½ cup salted butter softened
  • ½ cup brown sugar
  • ½ cup granulated white sugar
  • 2 large eggs room temperature
  • 2 teaspoons vanilla extract
  • 2 cups flour
  • ½ teaspoon baking powder
  • ½ teaspoon baking soda

For the frosting

  • ¾ cup salted butter softened
  • 2 ½ cups confectioners sugar
  • 2 Tablespoons milk
  • 1 teaspoon vanilla extract
  • Pink food coloring
  • sprinkles

Instructions

  • Preheat the oven to 350°F. Grease a 9x13 inch pan with nonstick spray, place a sheet of parchment paper in the pan.
  • In the bowl of a stand mixer fitted with paddle attachment, cream together your softened butter, brown sugar, and granulated sugar on medium-high speed until the mixture has become light and fluffy, about 4 minutes.
  • Mix in your eggs and vanilla on low speed until all the egg is combined.
  • Slowly add in the flour, baking powder, and baking soda until you have all the ingredients incorporated.
  • Spread the sugar cookie dough into the pan. Bake 18 to 22 minutes until the giant cookie is golden brown, allow the bars to fully cool.
  • Making the frosting: In the bowl of your mixer or using a large bowl and an electric mixer, cream the butter for 1 minute on medium speed. Reduce the speed down to low, slowly add in the milk and the sugar until all the sugar has been incorporated. Stir in the vanilla and a few drops of the food coloring. Turn the mixer to medium-high speed and mix for 3 minutes until fluffy. 
  • Spread the frosting over the cookie bar and top with the sprinkles. Use a piping bag to add frosting decorations if you're feeling fancy!
  • Cut the cookie bars into squares.

Notes

Recipe Tip: Be sure your butter is softened (not melted!) before mixing — it helps create that fluffy, chewy texture.
Storage:
  • Store in an airtight container at room temperature for up to 5 days.
  • For longer storage, freeze unfrosted bars for up to 2 months. Thaw, then frost before serving.
 

Nutrition

Serving: 1serving | Calories: 414kcal | Carbohydrates: 55g | Protein: 3g | Fat: 20g | Saturated Fat: 12g | Polyunsaturated Fat: 6g | Trans Fat: 1g | Cholesterol: 82mg | Sodium: 241mg | Fiber: 1g | Sugar: 39g
QR Code linking back to recipe