Preheat oven to 350°F. Spray the bottom of a 13 x 9-inch baking pan with no-stick cooking spray.
Combine all filling ingredients in small bowl; beat until smooth. Set aside. Combine all brownie ingredients in large bowl; beat 50 strokes with spoon.
Spread half of brownie batter in prepared pan. Pour filling mixture over brownie batter, spreading to cover. Top with spoonfuls of remaining brownie batter. To marble, pull knife through batter in wide curves; turn pan and repeat.
Bake the brownies 32 to 35 minutes or until set. Cool completely. Refrigerate at least 1 hour. Cut into bars. Store in refrigerator.
Notes
Recipe adapted from Pillsbury Zebra Brownies Recipe
The nutrition information provided are only estimates based on an online nutritional calculator. This is not a comprehensive list of all the nutrients in the recipe (i.e., does not include vitamins, cholesterol, etc). I am not a certified nutritionist. Please consult a nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.