Step 1: Preheat your oven to 350°F (175°C). Line a 9x13 inch baking pan with parchment paper, leaving an overhang on the sides. Lightly grease the parchment.
Step 2: In a large microwave-safe bowl, combine 1/2 cup unsalted butter and 4 ounces unsweetened chocolate. Microwave in 30-second intervals, stirring after each, until melted and smooth.
Step 3: To the melted chocolate mixture, whisk in 1 cup granulated sugar and 1/2 cup brown sugar until well combined. Add the eggs one at a time, whisking vigorously after each. Stir in 1 teaspoon vanilla extract.
Step 4: In a separate medium bowl, whisk together 3/4 cup all-purpose flour, 1/4 cup cocoa powder, and 1/2 teaspoon salt.
Step 5: Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Do not overmix. If using, fold in optional chocolate chips or nuts.
Step 6: Pour the brownie batter into the prepared pan and spread evenly. Bake for 25-30 minutes, or until a toothpick inserted into the center comes out with moist crumbs. Let cool completely in the pan on a wire rack.
Step 7: While brownies cool, heat-treat 1 cup all-purpose flour for the cookie dough. Spread flour on a baking sheet and bake at 300°F (150°C) for 5-7 minutes, or microwave on high for 60-90 seconds (stirring every 30 seconds) until it reaches 160°F (71°C). Let cool completely.
Step 8: In a large bowl, using an electric mixer, cream together 1/2 cup softened unsalted butter, 1/4 cup granulated sugar, and 1/2 cup brown sugar until light and fluffy (2-3 minutes).
Step 9: Beat in 2 tablespoons milk and 1 teaspoon vanilla extract until well combined and smooth.
Step 10: Gradually add the heat-treated flour and 1/4 teaspoon salt to the wet mixture, mixing on low speed until just combined. Avoid overmixing.
Step 11: Gently fold in 1 cup semi-sweet chocolate chips until evenly distributed throughout the cookie dough.
Step 12: Once the brownies are completely cool, evenly spread the edible cookie dough mixture over the cooled brownie layer. Use an offset spatula or your hands to press it into an even layer.
Step 13: Cover the pan loosely with plastic wrap and refrigerate for at least 1-2 hours, or until the cookie dough layer is firm enough to cut cleanly.
Step 14: Once chilled, use the parchment paper overhang to lift the entire slab out of the pan. Place on a cutting board and slice into squares. Use a sharp knife and wipe it clean between cuts for the neatest edges. Enjoy!
image_alt":"A tray of ultimate cookie dough brownies with a rich fudgy bottom and a thick layer of edible chocolate chip cookie dough on top, garnished with chocolate chips.
image_title":"Ultimate Cookie Dough Brownies Recipe
image_description":"Close-up of freshly baked and chilled ultimate cookie dough brownies, showcasing the distinct layers of rich brownie and creamy, chocolate chip cookie dough.
aggregateRating":{"ratingCount":128,"ratingValue":"4.9"},"diet":"Vegetarian","method":"Baking","notes":"Ensure brownies are completely cool before adding the cookie dough layer. Heat-treating flour is crucial for food safety. Chill thoroughly for clean slices.
nutrition":{"calories":"420 kcal","carbohydrateContent":"55g","cholesterolContent":"70mg","fatContent":"25g","fiberContent":"3g","proteinContent":"5g","saturatedFatContent":"15g","servingSize":"1 square","sodiumContent":"180mg","sugarContent":"40g","transFatContent":"0g","unsaturatedFatContent":"8g"},"video_url":"https://www.youtube.com/watch?v=1F2l0o2n_hM"}}