Ingredients for Marble Magic Decadent Brownie Bars
- French Vanilla Cake Mix
- 2 cups (4 sticks) unsalted butter, melted
- Sugar
- 2 teaspoons vanilla extract
- Brown Sugar
- 4 large eggs
- Cocoa Powder
- 2 cups all-purpose flour
- 1 teaspoon baking soda
- 1/2 teaspoon salt
- Semi Sweet Chocolate Chips
Cook Smarter with Sous, Your Kitchen Companion
Missing an ingredient for this Marble Magic Decadent Brownie Bars? Need a perfect wine pairing or a healthy side dish idea? Don't guess—ask Sous! Your AI-powered sous-chef is ready to help you swap ingredients, adjust serving sizes, and discover flavor tips in seconds.
How to Make Marble Magic Decadent Brownie Bars
- Preheat oven to 350°F (175°C).
- Grease a 13x9 inch baking pan and line the bottom with parchment paper, leaving an overhang on the sides to help with lifting later.
- Prepare the cake mix according to the box instructions in a food processor. Spoon into a separate bowl; do not clean the food processor.
- In the food processor, combine the melted butter, sugars, vanilla extract, and eggs until well blended.
- In a small bowl, whisk together the flour, baking soda, and salt.
- Add the dry ingredients to the food processor and pulse until just combined. Do not overmix.
- Pour the brownie batter into the prepared pan.
- Spoon dollops of the prepared cake batter evenly over the brownie batter. Gently swirl the batters together with a knife or toothpick, creating a marble effect.
- Bake for 35-45 minutes, or until a wooden skewer inserted into the center comes out with moist crumbs (but not wet batter). The cake batter should have risen and be lightly golden.
- Remove from oven and immediately sprinkle chocolate chips over the warm bars.
- Let the bars cool in the pan for at least 6-8 minutes before spreading with a knife to help with cutting and to prevent breakage
- Once completely cooled, lift the bars out of the pan using the parchment paper overhang. Cut into squares and serve.
Nutrition Information (Approximate per serving)
Sodium
13 g
Sugar
173g
Fat
61g
Carbs
20g