- 1
Preheat oven to 350°F. Line a 9 x 13 baking pan with parchment paper and coat with cooking spray.
- 2
In a medium bowl, whisk together flour, cocoa powder, baking powder and salt. Set aside.
- 3
In a large heatproof bowl, combine chocolate chips and butter. Set the bowl over a pot of simmering water and stir until melted. Remove from heat and let cool slightly. Stir in eggs, sugar and vanilla.
- 4
Gradually add flour mixture to chocolate mixture and stir to combine. Pour batter into prepared pan and bake for 30 to 35 minutes or until a toothpick inserted in the center comes out with a few moist crumbs. Let cool completely.
- 5
Remove brownies from pan using parchment paper and set on cutting board. Cut brownies into 3 even strips the long way, then make diagonal cuts across to create triangular shapes. Insert pretzel sticks into one side of brownies, breaking as necessary to fit. Garnish with frosting and sprinkles as desired.