Ingredients

unsalted butter,for greasing

2¼cupsgranulated sugar

1¼cupsdutch processed cocoa powder

1tspsalt

1tspbaking powder

1½cupsall-purpose flour

1cupvegetable oil

1tbspvanilla extract

3large eggs

¼cupwater

1cupwalnuts,toasted

½cupcreamy peanut butter

whipped cream,for serving

rainbow sprinkle,for topping

Preparation

Position a rack in the center of the oven, then preheat the oven to 350 degrees F.

Grease a 9×13-inch dark metal pan with softened butter, then line with parchment paper, leaving an overhang on all sides. Grease the parchment with more butter.

In a large bowl, whisk together the sugar, cocoa powder, salt, baking powder, and flour.

Add the vegetable oil, vanilla, eggs, and water, then whisk to combine. Stir in the walnuts.

Pour the brownie batter into the prepared baking pan, then smooth the top with a spatula.

Add the peanut butter over the top, then swirl into the batter with a knife or skewer.

Bake for 20 minutes until lightly puffed on top.

Transfer the brownie pan to a wire rack, and let cool for 30 minutes.

Use the parchment paper to lift the cooled brownies out of the pan, then cut them into 12 bars.

Serve with a dollop of whipped cream and a pinch of sprinkles, and enjoy!