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Guinness Cupcakes with Guinness Buttercream Frosting

This chocolate cupcake recipe uses rich Guinness Extra Stout to make it a decadent treat!
Prep Time20 mins
Cook Time20 mins
Course: Dessert
Servings: 24 cupcakes


Cake Recipe

  • 1 cup Guinness Extra Stout regular Guinness works just fine
  • sticks unsalted butter you can use salted and just not use the salt listed below if you'd like
  • ¾ cup unsweetened chocolate chips
  • 2 cups all purpose flour
  • 2 cups sugar
  • ½ TBLS baking soda
  • ¾ tsp salt skip the salt if using salted butter
  • 2 large eggs
  • ¾ cups sour cream

Frosting Recipe

  • 1 cup unsalted butter
  • cups sifted powder sugar
  • ¼ cup milk
  • ½ whole, scraped vanilla bean can be skipped
  • ½ TBSP vanilla extract
  • 1 cup Guinness Extra Stout regular is fine


Cake Instructions

  • Preheat over to 350 degrees
  • Bring stout and butter to simmer in a large saucepan, stirring often. DO NOT boil it.
  • Add unsweetened chocolate chips to hot stout/butter mixture. Whisk until chocolate is melted and combined.
  • Add sugar to chocolate mixture and whisk to combine until melted/combined.
  • Place mixture into a stand mixer or a bowl if using a hand mixer. Add whisk attachment.
  • In a separate bowl, sift together flour, baking soda, and salt.
  • In your mixer/bowl, mix eggs and sour cream on medium speed until combined.
  • Add the chocolate/stout mixture on medium/low speed until combined.
  • Slowly add the flour mixture until all combined, making sure to scrape and incorporate from the sides.
  • Place in your cupcake holders and fill to about 2/3 full.

Guinness Buttercream Frosting

  • In a saucepan, simmer Guinness on low for 10-15 minutes until it reduces down to a syrup-type liquid. Watch carefully and do not over cook.
  • In a separate bowl, cream your butter for 1 minute.
  • Slowly add powdered sugar in thirds, alternating with the milk. a little each time.
  • Add your vanilla.
  • Slowly add the reduced Guinness a little at a time, tasting to find preference.