Peanut Butter Brownie Cookies

Preheat the oven to 350°F (175°C). Line a baking sheet with parchment paper.
In a microwave-safe bowl, melt the butter and semi-sweet chocolate in 30-second intervals, stirring until smooth. Let cool slightly.
In a large mixing bowl, whisk together granulated sugar, brown sugar, eggs, and vanilla extract until light and fluffy.
Sift in the all-purpose flour, unsweetened cocoa powder, baking powder, and salt. Stir until just combined, then fold in the melted chocolate mixture.
In a small bowl, stir together the creamy peanut butter and powdered sugar until smooth.
Drop spoonfuls of the brownie cookie dough onto the prepared baking sheet, spacing them about 2 inches apart.
Add small dollops of the peanut butter mixture on top of each dough ball. Use a toothpick to gently swirl it into the dough.
Optional: Sprinkle with sea salt flakes or press chocolate chips or chopped peanuts into the dough before baking.
Bake for 10-12 minutes, or until the edges are set but the centers remain slightly soft.
Let the cookies cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely.
Serve warm or at room temperature and enjoy!