Chewy and butter-rich Cake Batter Blondies are so easy to make! Don’t forget to top them with the sweet cake batter frosting too for an over the top dessert!
Preheat oven to 350°F. Line an 8-inch square baking dish with parchment paper. Set aside.
In a large mixing bowl, combine brown sugar with melted butter. Add in egg, vanilla and salt. Mix until blended. Add in flour and cake mix, stirring JUST until combined. Fold in sprinkles.
Pour batter into prepared baking dish. Bake for 22-25 minutes. Remove from oven and cool completely.
While blondies are cooling, prepare the frosting. Beat butter with milk, powdered sugar, and yellow cake mix. Once smooth, spread over cooled blondies. Add sprinkles.
Notes
Don't overmix. Using just one bowl and a spoon, you can mix the ingredients just until combined. No electric mixer needed.
Keep bars in an airtight container for up to a week.
Freeze bars in a freezer safe container for up to 3 months.