Food & Cooking Recipes Dessert & Treats Recipes Brownie Recipes Chunky Chocolate Brownies 3.0 (2) Add your rating & review By Martha Stewart Test Kitchen Martha Stewart Test Kitchen The recipes developed by our test kitchen team have undergone a rigorous process of development and testing, ensuring that every element is optimal, from ingredient amounts to method and cooking time. This process includes triple-testing recipes to ensure they meet our high standards. The many stellar cooks and food editors who have been part of our team include Sarah Carey, Lucinda Scala Quinn, Jennifer Aaronson, Shira Bocar, Anna Kovel, Greg Lofts, Riley Wofford, Lauren Tyrell, and Lindsay Leopold. Editorial Guidelines Updated on June 12, 2017 Print Rate It Share Share Tweet Pin Email Yield: 2 dozen Eachbite of brownie has a chunk of whitechocolate. Ingredients Vegetable-oil cooking spray 2 cups all-purpose flour 1 ¼ teaspoons baking powder 1 ¼ teaspoons salt 2 ⅝ sticks unsalted butter (10 ½ ounces), cut into small pieces 7 ounces unsweetened chocolate, coarsely chopped 2 ¾ cups sugar 4 large eggs 2 teaspoons pure vanilla extract 2 cups (10 ounces) white- or milk-chocolate chunks Directions Preheat oven to 350 degrees. Coat a rimmed baking sheet with cooking spray. Line the bottom of baking sheet with parchment paper. Coat parchment with cooking spray; set aside. Whisk together flour, baking powder, and salt; set aside. Heat butter and unsweetened chocolate in a medium heatproof bowl set over a pan of simmering water until almost melted. Remove from heat. Whisk until mixture is smooth and slightly cool. Transfer chocolate mixture to the bowl of an electric mixer fitted with the whisk attachment. Add sugar. Beat on medium speed until smooth, about 3 minutes. Beat in eggs, 1 at a time. Add vanilla; beat 3 minutes more. Reduce speed to low. Gradually add flour mixture; beat until just combined. Stir in chocolate chunks. Spread batter evenly into prepared pan. Bake until brownie has just set but still feels soft, about 20 minutes. Let cool on a wire rack. Cut into squares. Cook's Notes Brownies can be stored in an airtight container at room temperature, up to 3 days. Rate it Print