*Increase measure to 1 tsp - if using unsalted butter
Preheat oven to 350deg
Lightly grease a 9" x 13" pan
In a medium sized micro-safe bowl, or in a saucepan set over low heat, melt the butter then add the sugar and stir to combine. Return mixture to heat (or micro)briefly, just until it is hot but NOT bubbling; it'll become shiny looking as you stir it. Heating the butter and sugar a second time will dissolve more of the sugar, which will yield a shiny top crust on your brownies. Transfer to a mixing bowl.
Stir in the cocoa, salt, baking powder, and vanilla. Add the eggs beating till smooth - then add the flour and chips, beating till well combined. Spoon the batter into pan.
Bake for 28 to 30 minutes - until a cake tester comes out clean.-
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