Food & Cooking Recipes Dessert & Treats Recipes Brownie Recipes Banana Split Brownies 2.7 (3) 4 Reviews By Martha Stewart Editors Martha Stewart Editors Facebook Instagram Twitter Website An article attributed to "Martha Stewart Editors" indicates when several writers and editors have contributed to an article over the years. These collaborations allow us to provide you with the most accurate, up-to-date, and comprehensive information available.The Martha Stewart team aims to teach and inspire readers daily with tested-until-perfected recipes, creative DIY projects, and elevated home and entertaining ideas. They are experts in their fields who research, create, and test the best ways to help readers design the life they want. The joy is in the doing. Editorial Guidelines Updated on May 16, 2017 Print Share Share Tweet Pin Email Yield: 24 These decadent brownies get their marbled tops from swirls of cream cheese. Ingredients 6 ounces best-quality bittersweet chocolate, chopped 2 ounces best-quality unsweetened chocolate, chopped 12 tablespoons (1 ½ sticks) unsalted butter, cut into small pieces 1 ¼ cups granulated sugar 4 large eggs ¾ cup plus 1 tablespoon all-purpose flour Pinch of salt 8 ounces cream cheese, at room temperature 1 large egg yolk Vegetable-oil cooking spray ¼ cup plus 2 tablespoons confectioners' sugar ½ teaspoon pure vanilla extract ½ cup mashed very ripe banana (1 medium banana) Directions Heat oven to 350 degrees. Spray a 9-by-13-inch baking pan with vegetable-oil spray. Bring a saucepan of water to a boil; remove from heat. Place both chocolates in a heat-proof bowl; set over saucepan. Stir occasionally until completely melted. Meanwhile, combine butter and granulated sugar in the bowl of an electric mixer fitted with the paddle attachment; beat on medium-low speed until light and fluffy, 3 to 4 minutes. Add 3 eggs; beat to combine. Scrape sides of bowl; add chocolate, 3/4 cup flour, and salt. Mix until just combined, 15 to 20 seconds, scraping sides of bowl once. In a food processor, process cream cheese until smooth and creamy, 25 to 30 seconds. Scrape down sides of bowl using a rubber spatula; add egg yolk, confectioners' sugar, vanilla, remaining tablespoon flour, and remaining egg. Process until smooth, about 1 minute. Transfer to a bowl; fold in mashed banana using a rubber spatula. Spread chocolate batter into prepared pan. Using a rubber spatula, make three trenches in batter, and fill with cream-cheese batter. To marble the top, run the tip of a knife back and forth across the two batters. Bake until set, about 40 minutes. Let cool on a wire rack for 30 minutes before cutting. Print