Chocolate Stout Brownies

Another beer recipe for everyone, loved the chocolate stout. The perfect way to up those boxed brownies! Super good!
1 bx of brownie mix (with the chocolate syrup in the mix)
1/4 c beer* (I used Samuel Smith's Chocolate Organic Stout)
1/4 c veg oil
1 egg
chocolate for grating

Heat oven to 350º. Grease a 8x8" or 9x9"pan.Grease or spray and set aside. In a medium bowl, stir together brownie mix, beer, oil and egg until well blended. Spread in pan. Sprinkle grated chocolate over top and bake 35-40min or until toothpick inserted comes out almost clean. Cool in pan on rack for about 1 ½ hours. 
Simple easy. Just using half of a can of chocolate frosting that I microwave for 20 secs or so (just until it melts) Let it cool and add about 2 tbsp of that stout. Pour over cooled cake and let it set in fridge. It's very rich so cut it into small squares. Loved it and saved leftovers to pour over ice cream.