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Cinnamon Roll Blondies

Cinnamon Roll Blondies are blondies with a layer of cinnamon-sugar mixture in the middle and topped with whipped cream cheese frosting.

Course Dessert
Cuisine American
Keyword Cinnamon Swirl Blondies
Prep Time 20 minutes
Cook Time 38 minutes
Total Time 58 minutes
Servings 16
Calories 367 kcal
Author Amanda Rettke--iambaker.net



  • 1 cup (2 sticks or 226g) unsalted butter, melted
  • cups (350g) light brown sugar, tightly packed
  • 2 large eggs + 1 egg yolk, room temperature
  • teaspoons vanilla extract
  • cups (285g) all-purpose flour
  • 2 teaspoons cornstarch
  • 1 teaspoon baking powder
  • 1 teaspoon kosher salt

Cinnamon Layer

  • 2 tablespoons butter, melted
  • ¼ cup light brown sugar, packed
  • 2 teaspoons cinnamon

Whipped Cream Cheese Frosting

  • 3 ounces cream cheese, softened
  • ¼ cup (½ stick or 57g) butter, softened
  • cups (188g) confectioners' sugar, sifted
  • 1 teaspoon vanilla extract
  • 1 pinch kosher salt


  1. Preheat the oven to 350°F and prepare a 9x9-inch pan by lining it with parchment paper (or lightly grease and flour). (You could use a 9x13-inch pan for more servings, but the bars will be thinner.)


  1. Whisk melted butter and brown sugar in a large bowl until fully incorporated.

  2. Add the eggs and the egg yolk, one at a time, whisking well after each addition.

  3. Whisk in the vanilla extract.

  4. In a separate, medium-sized bowl, whisk together the flour, cornstarch, baking powder, and salt.
  5. Using a rubber spatula, gradually stir the flour mixture into the butter and egg mixture until completely combined. Set aside as you prepare the cinnamon-sugar layer.

Cinnamon Layer

  1. In a small bowl combine melted butter, brown sugar, and cinnamon. Mix well.


  1. Spread half the blondie batter into the bottom of the lined baking dish. (The batter is thick.)

  2. Evenly spread the cinnamon layer over the blondie batter.

  3. Add the remaining blondie batter on top, spreading it out to the edges of the pan.

  4. Bake for 35-38 minutes, or until the edges just begin to turn golden brown and the center is no longer jiggly.

  5. Allow the bars to cool completely before adding the cream cheese frosting.

Whipped Cream Cheese Frosting

  1. Put cream cheese, butter, confectioners sugar, vanilla, and salt in a stand mixer fitted with the paddle attachment.

  2. Mix on low until just combined. Once ingredients are all incorporated, turn the mixer on high and leave it for 4-5 minutes. Frosting should be light and fluffy.

  3. Spread frosting over cooled blondies.