Chocolate Guinness Stout Mug Cake

chocolate Guinness Stout mug cake

On St. Patrick’s Day, everybody is Irish! Here in Chicago, we take the holiday very seriously. We’ve got a South Side parade, a downtown parade and we even dye the Chicago River green. After a weekend of getting your drink on, how about a sweet Guinness-infused treat you can make in less than 2 minutes in your microwave? Try this Chocolate Guinness Stout Mug Cake for a decadent dessert that’s perfectly portioned for one!

The malt of the Guinness Stout Beer intensifies the flavor of the chocolate. There are several kinds of stout beers: dry (Irish), imperial (Russian), porter, milk, oatmeal, coffee, oyster and even chocolate stout. Chocolate and beer often makes for a great combination in recipes. Served warm and topped off with chocolate syrup and whipped cream is delish. This chocolate Guinness stout mug cake is super moist, but feel free to pair it with a pint!

Need to feed a crowd? Try these Stout-Glazed Brownies.

chocolate Guinness Stout mug cake

Chocolate Guinness Stout Mug Cake

Rating: 51

Cook Time: 2 minutes

Yield: 1 serving


6 tablespoons all-purpose flour
4 tablespoons brown sugar
1/2 teaspoon baking powder
1 egg
2 1/2 tablespoons unsweetened cocoa powder
3 tablespoons milk
splash of vanilla extract
3 tablespoons canola or vegetable oil
6 tablespoons Guinness stout
chocolate syrup and whipped cream for garnish


With a small whisk or fork, mix all the ingredients in a microwave-safe beer mug until batter is smooth.

Cook on HIGH in a microwave for about 90 seconds. Do not overcook or the cake becomes rubbery.

Let cool slightly, then top with chocolate syrup and whipped cream. Sláinte!