Name: Sugar Cookie Bars
Prep time: 15 min
Cook time: 25 min
Total time: 40 min
Cuisine: American
Ingredients: 1 cup unsalted butter, softened; 1 1/2 cups granulated sugar; 2 large eggs; 2 teaspoons pure vanilla extract; 2 3/4 cups all-purpose flour; 1 teaspoon baking powder; 1/2 teaspoon salt; 1/2 cup sour cream; 1/2 cup unsalted butter, softened (for frosting); 3 cups powdered sugar; 2 tablespoons heavy cream (plus more if needed); 1 teaspoon vanilla extract (for frosting); Pinch of salt; Sprinkles for topping (optional)

I make these sugar cookie bars when I want all the classic vanilla sugar cookie flavor in an easy, no-fuss form. They are soft, buttery, and topped with a thick layer of creamy vanilla frosting and colorful sprinkles. Instead of rolling and cutting individual cookies, I simply press the dough into a pan and bake, which saves me time while still giving me that homemade bakery-style taste.

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

1 cup unsalted butter, softened

1 1/2 cups granulated sugar

2 large eggs

2 teaspoons pure vanilla extract

2 3/4 cups all-purpose flour

1 teaspoon baking powder

1/2 teaspoon salt

1/2 cup sour cream

For the frosting:

1/2 cup unsalted butter, softened

3 cups powdered sugar

2 tablespoons heavy cream (plus more if needed)

1 teaspoon vanilla extract

Pinch of salt

Sprinkles for topping (optional)

Directions

I start by preheating my oven to 350°F (175°C) and lining a 9×13-inch baking pan with parchment paper or lightly greasing it.

In a large mixing bowl, I cream together the softened butter and granulated sugar for about 2 to 3 minutes, until the mixture becomes light and fluffy. I add the eggs one at a time, mixing well after each addition, then stir in the vanilla extract.

In a separate bowl, I whisk together the flour, baking powder, and salt. I gradually add the dry ingredients into the wet mixture, mixing just until combined. Then I gently fold in the sour cream until the batter is smooth.

I spread the dough evenly into the prepared pan, smoothing the top with a spatula. I bake the bars for 20 to 25 minutes, until the edges are lightly golden and a toothpick inserted into the center comes out clean. I make sure not to overbake them so they stay soft.

After baking, I let the bars cool completely in the pan before adding the frosting.

To prepare the frosting, I beat the softened butter until creamy. I gradually mix in the powdered sugar, then add the heavy cream, vanilla extract, and a pinch of salt. I continue beating until the frosting is smooth and spreadable. I spread it evenly over the cooled bars and finish with sprinkles before slicing into squares.

Servings and timing

Prep Time: 15 minutes

Cooking Time: 25 minutes

Total Time: 40 minutes

Servings: 16 servings

Calories: 320 kcal per serving

Variations

I sometimes swap the vanilla extract for almond extract to create a slightly different flavor profile. For a festive look, I tint the frosting with food coloring and match the sprinkles to the occasion. When I want a richer twist, I add a thin layer of jam under the frosting. I also like adding lemon zest to the batter for a bright citrus variation.

Storage/Reheating

I store these sugar cookie bars in an airtight container at room temperature for up to 3 days. If I want them to last longer, I refrigerate them for up to 5 days. Before serving, I let refrigerated bars sit at room temperature so the frosting softens. I can also freeze the unfrosted bars for up to 2 months, tightly wrapped, and frost them after thawing.

FAQs

Can I make these sugar cookie bars ahead of time?

I often bake them a day in advance and frost them the next day. I keep the unfrosted bars covered at room temperature until I am ready to decorate.

Why do I add sour cream to the batter?

I add sour cream because it keeps the bars soft and moist while giving them a tender texture.

How do I know when the bars are done baking?

I check for lightly golden edges and insert a toothpick into the center. If it comes out clean or with a few moist crumbs, I know they are ready.

Can I use store-bought frosting?

I can use store-bought frosting if I am short on time, but I find homemade frosting tastes fresher and creamier.

Can I double this recipe?

I can double the recipe and bake it in a larger sheet pan, adjusting the baking time slightly and watching carefully so I do not overbake.

Conclusion

I love making these sugar cookie bars because they deliver classic sugar cookie flavor in a simple, slice-and-serve form. The soft, buttery base combined with creamy vanilla frosting makes them perfect for gatherings, celebrations, or everyday treats. Whenever I want an easy dessert that everyone enjoys, I turn to this reliable and delicious recipe.

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