Sugar Cookie Bars

These easy Sugar Cookie Bars are buttery, soft and topped with the best sweet buttercream frosting! A crowd pleasing treat that is a breeze to whip up for any occasion!

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This post was originally posted on 6/5/2020 and updated on 3/21/2023.

Sugar Cookie Bars Ingredients

• Salted Butter
• Sugar
• Eggs
• Pure Vanilla Extract
• Baking Powder
• Baking Soda
• Unbleached All Purpose Flour
• Powdered Sugar
• Milk

How To Make Easy Sugar Cookie Bars

1. Preheat the oven to 350°F and grease a 15in x 10in jelly roll sheet pan with non stick cooking spray.
2. Now gather all your ingredients. In stand mixer with paddle attachment or a large mixing bowl and hand mixer, cream together the softened butter and white sugar until light and fluffy.
3. Next, add the eggs, one at a time beating well after each addition. Then beat in vanilla extract.

4. Now, add the baking powder, baking soda and one cup of flour. Mix until just incorporated and then continue to add the remaining flour, one cup at a time until it is all fully combined.
5. Spread the dough out evenly onto the greased sheet pan. I've found using my hands works a lot better than a spatula.

6. Bake the bars for 15-20 minutes just until the edges have started to turn golden brown and the center no longer looks glossy.
7. Cool completely before frosting.
8. In a stand mixer or with hand mixer, beat softened butter until creamy.
9. Then, add one cup of powdered sugar at a time, beating well after each cup.
10. Now add in the vanilla and milk and beat until its all incorporated.
11. Lastly, increase the speed and beat frosting for 1-2 minutes until creamy and fluffy.

12. Evenly spread out the frosting. An offset spatula works really well.
13. Decorate with your favorite sprinkles and enjoy!

If you love sugar cookies, try these delicious Frosted Sugar Cookies or Confetti Sugar Cookies.

How to Store Frosted Sugar Cookie Bars

Storing: Store these frosted cookie bars in an air tight container between layers of wax paper. Keep them in a cool dry place and they'll last a few weeks. If you notice the bars starting to get a little dry and hard, add a piece of bread to the container with the bars.

Freezing: These bars freeze well! You can freeze them with or without the frosting. Place the bars in a freezer safe air tight container in single layers, between pieces of wax paper. Label, date and freeze. Frosted sugar cookie bars will last 3-4 months in the freezer.

Thawing: To thaw the frozen bars, simply let them sit at room temperature for a few hours.

Tips for Sugar Cookie Bar Recipe

• Start with room temperature ingredients. This helps the dough come together better and helps ensure even baking.
• Always fluff your flour and then spoon and level it to measure. Doing this will prevent you from adding too much flour to your recipe and ultimately making the bars dry and crumbly.
• Do not overbake the bars. They are done when the edges are just barely browned and the center is no longer glossy.
• These cookies can be customized for any holiday, party, or event. Use any food coloring you like in the frosting and an assortment of sprinkles and decorations.
• If you would like a smaller batch, divide the recipe in half and bake in a 9x13 inch baking dish.

More Dessert Bar Recipes:

• Chocolate Chip Cookie Bars
• Snickerdoodle Bars
• Oatmeal Fudge Bars
• S'mores Brownies
• Strawberry Cheesecake Brownies
• Peanut Butter Brownie Bars
• Strawberry Rhubarb Bars