In a small saucepan, simmer the stout over medium heat until reduced from ½ cup to about ¼ cup.
Line an 8×8-inch pan with parchment paper.
Tips for the Best Brownies
Use a good stout. Roasted malt enhances the chocolate flavour. Serve with your favourite stout on the side.
Don’t overbake. Slightly underbaked brownies will firm up as they cool.
Let them rest. Brownies cut more cleanly after cooling completely.