Instructions

Arrange a rack in center of oven; preheat to 350°. Spray a 9" x 9" square baking dish with cooking spray and line with parchment, leaving an overhang on 2 opposite sides. In a food processor, process cottage cheese on medium speed until smooth with no visible curds remaining. Measure out 1/4 cup and reserve for brownie batter. Add cream cheese and sugar to food processor and process until smooth, about 1 minute. Add egg and vanilla and continue to process until well combined. In a large bowl, prepare brownie batter according to package instructions. Stir in whey powder and reserved 1/4 cup cottage cheese mixture. Measure out 1/3 cup brownie batter and reserve for assembly. Transfer remaining batter to prepared pan. Top brownie batter with cottage cheese batter and spread into an even layer. Dollop spoonfuls of 1/3 cup reserved brownie batter on top. Using the pointed edge of a knife or toothpick, drag brownie mix through cottage cheese topping in figure-8 movements to create swirls. Bake brownies until a tester comes out mostly clean with some cheesecake crumb attached, 35 to 40 minutes. The cheesecake topping will be bouncy or have a slight give in the center of the pan. Transfer to a wire rack and let cool at least 3 hours before slicing into squares.

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  • cooking spray
  • cottage cheese Notes: 3/4, divided, room temperature
  • pkg. cream cheese Notes: 1, softened
  • granulated sugar Notes: 1/4
  • large egg Notes: 1
  • tsp. vanilla extract Notes: 1
  • pkg. brownie mix Notes: 1, plus ingredients called for on box
  • tbsp. chocolate whey protein powder Notes: 1