1-Getting ready: Start by preheating your oven to 350°F (175°C) and preparing an 8×8-inch square baking pan with baking spray and parchment paper for easy removal later.

2-Melting and mixing chocolate: First, melt the unsalted butter in a small saucepan over medium heat, then remove it from the heat and whisk in half of the semisweet chocolate chips until smooth. Transfer this mixture to a large bowl and let it cool briefly to avoid cooking the eggs later. In another bowl, sift the all-purpose flour and unsweetened cocoa powder together, then whisk in the salt to ensure even distribution and prevent lumps for that perfect texture.

3-Combining ingredients: Next, add the granulated sugar, light brown sugar, eggs, and vanilla extract to the cooled chocolate mixture, whisking until everything is smooth and well combined. This step is crucial for achieving those creamy brownies everyone loves. Fold in the flour mixture gently until just combined, then stir in the remaining chocolate chips to add those delightful pockets of meltiness.

4>Adding the Peanut Butter Swirl: Pour the batter evenly into your prepared pan, spreading it out with a spatula for an even bake. Drop the creamy peanut butter by teaspoonfuls over the top and use a knife or skewer to swirl it gently, creating that beautiful marbled effect in your chocolate peanut butter treats. Bake for 40 to 45 minutes, checking that the center no longer wobbles when shaken, or go for about 35 minutes if you prefer a gooier center like in the peanut butter brownies recipe with creamy swirls.

5-Baking and cooling: If the peanut butter begins to brown after 25 minutes, cover the pan with foil to keep it from overcooking. Once baked, let the brownies cool completely before slicing to maintain their fudgy texture.