In a mixing bowl combine flour, cocoa, baking powder, baking soda and salt
In a saucepan melt the butter over low heat. Once melted remove from heat and add sugar, corn syrup - whisking until combined. Add the eggs one at a time, mixing thoroughly. Add vanilla. Add flour mixture and whisk until blended together.
Fold in chips.
Spread mixture evenly in prepared pan
Bake for 30 minutes or until cake tester comes out clean.
Notes
I made a double batch and froze half of the cooked brownies in individual portions. I let them come to room temperature before serving and they were delicious!