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Chewy Cinnamon Swirl Snickerdoodle Blondies with Vanilla Glaze

A square slice of moist snickerdoodle blondies featuring a cinnamon swirl and topped with a white vanilla icing drizzle.

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Make soft, chewy Snickerdoodle Blondies that taste like a classic cookie in bar form. This easy recipe features a buttery base, a warm cinnamon swirl, and a simple vanilla glaze for a melt-in-your-mouth dessert.

Ingredients

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  • 1 cup unsalted butter, melted
  • 1 cup packed brown sugar
  • 1/2 cup granulated sugar (plus 1/4 cup for topping)
  • 2 large eggs
  • 2 teaspoons vanilla extract
  • 2 cups all-purpose flour
  • 2 teaspoons baking powder
  • 1 teaspoon ground cinnamon (plus 1 tablespoon for topping)
  • 1/2 teaspoon salt
  • 1/4 cup granulated sugar (for topping)
  • 1 tablespoon ground cinnamon (for topping)
  • For Glaze: 1 cup powdered sugar, 2 tablespoons milk, 1/2 teaspoon vanilla extract

Instructions

  1. Preheat your oven to 350°F (175°C). Line an 8×8 inch baking pan with parchment paper, leaving an overhang on the sides for easy removal.
  2. In a large bowl, whisk together the melted butter, brown sugar, and 1/2 cup of granulated sugar until smooth.
  3. Beat in the eggs one at a time, then mix in the 2 teaspoons of vanilla extract.
  4. In a separate bowl, whisk together the flour, baking powder, 1 teaspoon of cinnamon, and salt.
  5. Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Do not overmix.
  6. In a small bowl, mix the 1/4 cup granulated sugar and 1 tablespoon cinnamon for the topping. Set aside.
  7. Spread half of the blondie batter evenly into the prepared pan.
  8. Sprinkle half of the cinnamon-sugar topping mixture over the batter.
  9. Dollop the remaining batter over the first layer and gently spread it out. Sprinkle the remaining cinnamon-sugar topping over the top layer.
  10. Bake for 25 to 30 minutes, or until the edges are set and a toothpick inserted near the center comes out with moist crumbs attached. You want these gooey dessert bars to remain soft.
  11. Let the blondies cool completely in the pan on a wire rack.
  12. While cooling, prepare the glaze: Whisk together the powdered sugar, milk, and 1/2 teaspoon vanilla extract until smooth.
  13. Once cool, drizzle the vanilla glaze over the blondies. Let the glaze set before cutting into squares.

Notes

  • For the best soft and chewy texture, avoid overbaking. The center should look slightly underdone when you remove them from the oven.
  • If you want a stronger cinnamon swirl, mix 1/4 cup of the batter with 1 teaspoon of cinnamon and gently swirl it into the top layer before baking.
  • These buttery blondies are excellent served slightly warm with a scoop of vanilla ice cream.

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