Soft and chewy Cinnamon Roll Blondies swirled with buttery cinnamon sugar and drizzled with a sweet cream cheese glaze. All the flavor of a cinnamon roll baked into an easy bar dessert.
Preheat oven to 350°F. Line an 8×8-inch baking pan with parchment paper, leaving overhang on the sides for easy removal.
In a large bowl, whisk together melted butter and brown sugar until smooth. Add the egg, yolk, and vanilla. Whisk until the mixture is thick and glossy.
In a separate bowl, whisk flour, baking powder, baking soda, salt, and cinnamon.
Gently fold dry ingredients into the wet mixture with a spatula until no streaks of flour remain. Do not overmix.
Spread the blondie batter evenly in the prepared pan.
Topping
In a small bowl, stir together sugar and cinnamon. Sprinkle spoonfuls of the mixture on top of the batter, covering fully.
Bake for 30–36 minutes, until edges are golden brown and the center looks just slightly soft. The blondies will continue to set as they cool.
Allow blondies to cool in the pan before glazing.
Glaze
In a small bowl, whisk together cream cheese, butter, powdered sugar, and milk until smooth. (If too thick, add a splash more milk.)
Drizzle glaze over cooled blondies, slice into squares, and enjoy.