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A few sliced cookie bars with cinnamon icing on top
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5 from 6 votes

Snickerdoodle Bars

These snickerdoodle bars are soft and chewy with a creamy cinnamon icing on top.
Prep Time20 minutes
Cook Time20 minutes
Cool Time20 minutes
Total Time1 hour 10 minutes
Course: Dessert
Cuisine: American
Keyword: apple cinnamon cake, carrot cake frosting, christmas, cookie bars, easy baking recipe, holiday baking, snickerdoodle bars
Servings: 18

Ingredients

For the Cookie Dough

  • 1 cup unsalted butter softened
  • 1 cup granulated sugar
  • cup light brown sugar
  • 2 large eggs
  • 2 teas vanilla extract
  • 2 ½ cups all-purpose flour
  • 1 ¼ teaspoons cream of tartar
  • 1 teas baking soda
  • ½ teas salt

For the Topping

  • 3 tablespoons granulated sugar
  • 1 ½ teaspoons ground cinnamon

For the Cinnamon Icing

  • ¾ cup unsalted butter softened
  • 3 cups confectioners' sugar
  • 1 tablespoon milk
  • 1 teaspoon vanilla extract
  • ½ teaspoon ground cinnamon plus more for sprinkling

Instructions

To Make the Cookie Bars

  • Preheat oven to 350°F. Grease and line the sides and bottom of a 9 X 13-inch baking pan. Set aside.
  • In a bowl with a hand mixer (or a stand mixer with a paddle attachment), mix the butter until creamy. Add the granulated and light brown sugar and mix until fluffy and combined.
  • With the mixer on low, add the eggs, one at a time. Add the vanilla and mix to combine.
  • Sift in the all-purpose flour, cream of tartar, baking soda, and salt. Mix until the flour begins to incorporate. Switch to a rubber spatula when the dough gets too thick.
  • Tip the dough into the prepared pan and begin to smoosh and spread it out. Use an offset spatula to spread until even.
  • In a small bowl, combine the 3 tablespoons sugar and 1 ½ teaspoon cinnamon. Sprinkle over the top of the cookie dough.
  • Bake for 20 to 22 minutes. When done, the edges should be set but the center still soft.
  • Cool the cookie bars in their pan over a wire rack before frosting.

To Make the Cinnamon Icing

  • Place the butter in a bowl and mix with a hand mixer (or in stand mixer with the paddle attachment) until creamy.
  • Add the confectioners' sugar, milk, vanilla, and cinnamon. Mix on low until incorporated.
  • Turn the mixer up to medium and mix until smooth and fluffy.
  • Use an offset spatula or the back of a spoon to spread and swirl the icing on top of the cooled cookie bars.
  • Sprinkle with cinnamon and slice into 18 bars before serving.

Notes

Store the frosted cookie bars in an air-tight container at room temperature for up to 3 days.
Unfrosted snickerdoodle bars may be frozen. Wrap the cookie bars in plastic then slip into a zip-top bag. Cookie bars can be frozen for up the three months.