01 -
Preheat the oven to 350°F (175°C). Line a 13x9-inch baking dish with parchment paper and set aside.
02 -
In a medium-sized saucepan, melt butter over medium heat. Remove from heat and add chocolate chips and granulated sugar. Stir until the chocolate is completely melted and smooth.
03 -
Add eggs, one at a time, mixing completely after each addition. Then add vanilla extract and stir until incorporated.
04 -
Add cocoa powder, all-purpose flour, kosher salt, and baking powder. Stir gently until just combined and no dry ingredients remain visible.
05 -
Pour the batter into the prepared baking dish and bake for 23-25 minutes. Remove from the oven and allow to cool slightly.
06 -
In a mixing bowl, combine melted butter, peanut butter, vanilla extract, and powdered sugar. Beat until smooth and fully combined.
07 -
Gently spread the peanut butter filling over the warm brownies using your fingertips to create an even layer.
08 -
In a small microwave-safe bowl, combine chocolate chips and heavy whipping cream. Heat in the microwave for 1 minute, then stir until smooth.
09 -
Pour the ganache over the peanut butter layer, spreading evenly to cover.
10 -
Refrigerate the brownies for at least 2 hours. Cut into bars while chilled and serve.