Preheat oven to 350 degrees.
Mix flour, baking powder, and salt in a bowl and set aside.
Melt butter and add to a mixing bowl.
Add sugar and vanilla to butter and mix.
Add eggs and beat one at a time.
Slowly add flour mixture and continue to stir.
Add cocoa powder and continue to mix until combined.
Gently fold in chocolate chips.
Butter a 8x8 baking dish and add the brownie batter.
Bake for 35-45 minutes.