1. Prepare the Brownies: Start by baking your brownie mix according to package instructions. I prefer to underbake them slightly by about 2 minutes—this ensures they remain fudgy when rolled into balls later. Allow them to cool completely.

2. Create the Peanut Butter Filling: In a medium bowl, combine 1 cup creamy peanut butter, ½ cup powdered sugar, ½ teaspoon vanilla extract, and a pinch of salt. Mix until smooth and well incorporated. The texture should be thick enough to hold its shape but still pliable.

3. Crumble the Brownies: Break the cooled brownies into fine crumbs in a large bowl. I find using my hands gives me the best control over the texture. Leave some small chunks for textural interest.

4. Form the Brownie Balls: Take about 1 tablespoon of brownie crumbs and flatten in your palm. Add a small teaspoon of the peanut butter filling in the center, then fold the brownie around it, rolling between your palms to form a sealed ball. Place on a parchment-lined baking sheet.

5. Chill the Balls: Refrigerate the brownie balls for at least 30 minutes. This crucial step ensures they’ll maintain their shape when dipped in warm chocolate.

6. Melt the Chocolate: Place semi-sweet chocolate chips in a microwave-safe bowl. Heat in 30-second intervals, stirring between each, until completely smooth. The chocolate should be fluid but not too hot, which could melt your brownie balls.

7. Dip the Brownie Bombs: Using a fork or dipping tool, submerge each brownie ball into the melted chocolate. Tap gently to remove excess, then return to the parchment paper. Work quickly to prevent the brownie balls from warming up.

8. Prepare the Peanut Butter Icing: In a small bowl, whisk together the remaining ¼ cup powdered sugar, 1 tablespoon water, 2 teaspoons peanut butter, 1 teaspoon corn syrup, and ¼ teaspoon vanilla until smooth. Transfer to a small piping bag or zip-top bag with the corner snipped.

9. Decorate: Once the chocolate has set slightly but is still tacky, drizzle the peanut butter icing over the tops in a zigzag pattern. This not only adds visual appeal but also hints at the peanut butter surprise inside.

10. Set the Chocolate: Allow the brownie bombs to set completely at room temperature or speed up the process by refrigerating for about 10 minutes.