Step 1

Preheat oven to 350°F. Line a 9-inch baking dish with parchment paper. Set aside.

Step 2

In a medium sized saucepan, melt butter over medium heat. Remove from heat and add in chocolate chips and sugar.

Step 3

Stir until chocolate is completely melted. Add in eggs, one at a time, stirring completely after each addition. Stir in vanilla.

Step 4

Add the cocoa powder, flour, salt, and baking powder. Using big strokes, stir in JUST until mixed and no longer see dry ingredients. DO NOT BEAT OR OVER STIR.

Step 5

Pour batter into dish and dollop with peanut butter. Swirl peanut butter into brownie batter with a knife.

Step 6

Bake for about 40-45 minutes. Remove from oven and cool completely before cutting.