The brownies came out thick and moist, and replacing the oil with butter took them to a whole new level of decadence. It’s like the butter whispered sweet nothings to the chocolate as they baked.

then mix the batter from 2 boxes of Ghirardelli supreme brownie mix as directed on the box, substituting an equal amount of melted butter for oil. Add chocolate chips. Add 1/2 cup each of white ...