Sugar Cookie Blondies

Side view of some sliced sugar cookie bars.

5 from 4 votes

Sugar Cookie Blondies combine an easy sugar cookie base with a buttery frosting. These are unbelievably moist and you'll be hooked after the first bite. Use any color of frosting for a variety of occasions and top with all the sprinkles!

Course Dessert

Cuisine American

Keyword frosted sugar cookie bars, sugar cookie blondies

Prep Time 15

Cook Time 15

Total Time 30

Servings bars

Calories 266kcal

Author Sue Ringsdorf

Ingredients

For the cookie cake:

1 cup unsalted butter - softened to room temperature
1/2 cup brown sugar (110 grams)
1/2 cup white sugar (100 grams)
2 large eggs - at room temp
2 teaspoons vanilla
2 ½ cups all-purpose flour (300 grams)
1 ½ teaspoon baking soda
1 teaspoon cornstarch
1 teaspoon kosher salt

For the frosting:

3/4 cup unsalted butter - at room temperature
1 teaspoon vanilla
3 Tablespoons half and half - or whole milk
3 cups sifted powdered sugar (360 grams) - or to right consistency

Instructions

For the cookies:

Preheat oven to 350 degrees. Add parchment paper to a 9x13-inch pan.
In a standing mixer (or use a hand mixer), cream the butter and sugars together. Add the eggs and vanilla, and mix again.
1 cup unsalted butter, 1/2 cup brown sugar (110 grams), 1/2 cup white sugar (100 grams), 2 large eggs, 2 teaspoons vanilla
Then add the dry ingredients - flour, baking soda, cornstarch, and salt. Mix until just combined.
2 ½ cups all-purpose flour (300 grams), 1 ½ teaspoon baking soda, 1 teaspoon cornstarch, 1 teaspoon kosher salt
Use your hands to press the cookie dough into the prepared pan, spreading it evenly to the edges of the pan.
Bake the cookie bars for 15-18 minutes, or until the top just starts to get golden brown. It's ok to slightly under-bake this cookie cake. Remove to a cooling rack.

For the frosting:

Make the frosting in a separate bowl. Use a hand mixer to whip the butter for about a minute or so. Then add the vanilla, half and half, and powdered sugar. Mix very well.
3/4 cup unsalted butter, 1 teaspoon vanilla, 3 Tablespoons half and half, 3 cups sifted powdered sugar (360 grams)
Add a couple drops of food coloring (optional) to the frosting and mix again. Add frosting to the cooled bars and spread evenly. Add sprinkles!

Notes

Making sugar cookie bars is quicker and easier than making cookies. They require no chill time in the refrigerator and are quicker to make because you bake only one pan
You can freeze the sugar cookie bars BEFORE frosting them. Or you can freeze the dough and let thaw before pressing into pan to bake. Don't freeze the frosting.
Leftover sugar cookie bars stay fresh on the counter for 3-4 days.

Nutrition