Best Frosted Sugar Cookie Bars Easiest Recipe Ever

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These Frosted Sugar Cookie Bars are your favorite cookie in bar form, frosted with light and fluffy buttercream. Simple, lovely, and irresistible.  


– 3 & 3/4 cups all-purpose flour – ¾ teaspoon baking powder – Pinch of salt – 1 cup unsalted butter softened – 1 & ½ cups granulated sugar – 3 large eggs – 2 teaspoons vanilla extract For the frosting: – ½ cup unsalted butter softened – 2 cups powdered sugar – Pinch of salt – 1 teaspoon vanilla extract – 1 tablespoon milk – Food coloring of your choice optional – Sprinkles optional


Heat the oven to 375°F. To prepare, line a 9x13 baking pan with parchment paper or foil and spray with baking spray. Whisk together flour, baking powder, and salt in a large bowl; set aside. 

Step 1

Cream room-temperature butter and sugar on medium speed in a stand mixer with the paddle attachment or an electric mixer and a large bowl until light and fluffy. It turns pale yellow in 3 minutes. 

Step 2

Add eggs one at a time until combined. Mix vanilla in. Mix the dry ingredients into the wet ingredients until just combined, without dry spots. Do not overmix. 

Step 3

I use my hands to press sugar cookie dough into the baking dish bottom. Bake for 20–25 minutes until the edges are lightly golden brown and a toothpick inserted into the center comes out clean.  

Step 4

Cool completely on a wire rack. While the cookie cools, whip the butter in a stand mixer with the paddle attachment or a large bowl with a hand mixer until smooth to make the frosting. 

Step 5

Mix in powdered sugar. Add salt, vanilla, and milk and mix well. Scrape sides as needed. Whisk on medium-high speed for 3 minutes until fluffy;  

Step 6

add food coloring if using and fully mix until you reach your desired frosting color. 

Step 7

Use a spatula to stir in one last time to remove any white streaks. Frost and sprinkle the cookie after it cools. Cut 15 bars and serve.  

Step 8


-Calories: 431kcal -Carbohydrates: 60g -Protein: 5g -Fat: 20g -Saturated Fat: 12g -Polyunsaturated Fat: 1g -Monounsaturated Fat: 5g -Trans Fat: 1g -Cholesterol: 82mg -Sodium: 17mg -Potassium: 75mg -Fiber: 1g -Sugar: 36g -Vitamin A: 616IU -Calcium: 25mg -Iron: 2mg

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