Guinness Cupcakes with Baileys Frosting
These moist Guinness Chocolate Cupcakes are made with melted chocolate and stout beer for a deep, bold flavor. They’re topped with a light and creamy Baileys frosting and finished with an easy chocolate drizzle—perfect for a St. Patrick’s Day dessert. We hope you have as much fun making them as we do!
Ingredients
- 113 g (½ cup / 1 stick) unsalted butter, cubed
- 236 g (1 cup) Guinness stout
- 90 g (½ cup) semi-sweet chocolate chips
- 42 g (½ cup) Dutch-process cocoa powder
- 2 tsp espresso powder
- 180 g (1½ cups) all-purpose flour
- 1 tsp baking soda
- ½ tsp salt
- 150 g (¾ cup) granulated sugar
- 100 g (½ cup) dark brown sugar, packed
- 120 g (½ cup) sour cream, room temperature (68-72°F)
- 2 large eggs, room temperature
- 2 tsp vanilla extract
- 226 g (2 sticks / 1 cup) salted butter, softened (68-72°F)
- 113 g (4 Tbsp / 4 oz) full-fat cream cheese, softened (68-72°F)
- 480 g (4 cups) powdered sugar, sifted
- ⅛ tsp salt
- ½ tsp vanilla extract
- 50 ml (1 nip bottle / 3 Tbsp + 1 tsp) Baileys Irish Cream
- 20 g (3 Tbsp) unsweetened cocoa powder
- 25 g (2 Tbsp) light or dark brown sugar
- 1 tsp granulated sugar
- 40 ml (2½ Tbsp) water
- Pinch of salt
-
⅛ tsp vanilla extract
- Shaved chocolate
- Chocolate jimmies
- St. Patrick’s Day sprinkles
Guinness Chocolate Cupcakes
Baileys Cream Cheese Frosting
Chocolate Drizzle
Toppings (optional)
Instructions
Guinness Chocolate Cupcakes
In a small saucepan over medium heat, melt the butter with Guinness, stirring occasionally. Heat until just steaming—do not let it simmer.
- Pour the hot mixture over the chocolate chips in a heatproof bowl or large measuring glass, then whisk until smooth.
- Whisk in cocoa powder and espresso powder until fully combined. Let cool for 10-20 minutes until it reaches 85-110°F.
- Preheat oven to 335°F. Line two 12-cup muffin tins with 20-22 cupcake liners.
- In a medium bowl, sift and whisk together the flour, baking soda, and salt. Set aside.
- In a large bowl, whisk together the granulated sugar, brown sugar, eggs, sour cream, and vanilla until smooth, about 30-60 seconds.
- Slowly pour in the cooled chocolate mixture, whisking continuously until fully incorporated.
- Add the dry ingredients in two additions, whisking until just combined. The batter should be similar to pancake batter. (see notes)
- Divide the batter evenly among the liners using a 3-Tbsp scoop, filling each about ¾ full.
- Bake for 16-21 minutes, or until a toothpick inserted in the center comes out mostly clean with a few moist crumbs.
- Let cool in the pan for 5 minutes, then transfer to a wire rack to cool completely before frosting.
Baileys Cream Cheese Frosting
In a stand mixer fitted with the whisk attachment (or using a hand mixer), beat the butter on low speed until smooth, about 30-60 seconds.
- Add the cream cheese and mix on low until fully combined and smooth, about 1 minute.
- Add the salt and sifted powdered sugar in two additions, mixing on low speed until mostly combined with some powder remaining.
- Add vanilla and espresso powder (if using), then very slowly pour in the Baileys while mixing on low speed until smooth and creamy, about 1-2 minutes. Pause to scrape the bowl as needed.
- If the frosting is too soft, chill for 10-15 minutes before piping. (see notes)
Chocolate Drizzle
In a small saucepan, whisk together the cocoa powder, brown sugar, and salt.
- Gradually whisk in water until smooth.
- Cook over medium heat, stirring constantly with a rubber spatula, until the mixture bubbles and thickens slightly, about 2-3 minutes.
- Remove from heat and stir in vanilla.
- Let cool for 5-10 minutes before drizzling over frosted cupcakes.
Did you make this? We’d love to hear how it turned out! Leave a review
Notes
- Servings: Makes 20-22 standard cupcakes.
- Storage: Store frosted cupcakes at room temperature for up to 4 hours or refrigerate for up to a week. Unfrosted cupcakes can be stored at room temperature for 4 days or frozen for up to 3 months.
- Chocolate Chips: Swap semisweet chocolate chips for milk chocolate for a sweeter taste or dark chocolate for a less sweet, deeper chocolate flavor.
- Cocoa Powder: Unsweetened cocoa powder works too, but it will give a lighter chocolate flavor.
- Espresso Powder: You can leave it out of the batter, but it really enhances the chocolate and stout flavors.
- Batter Consistency: If the batter is too runny, let it sit for 5-10 minutes to allow the flour to absorb moisture. It should be smooth and pourable but not watery, similar to pancake batter. If you scoop it with a spoon, it should flow smoothly but still hold some shape as it falls back into the bowl. If it’s still too thin, whisk in 1 tablespoon of all-purpose flour at a time until it thickens slightly. Chocolate-based batters tend to be thinner due to melted butter and extra liquid ingredients.
- Frosting Texture: Ensure the butter and cream cheese are at the same temperature to prevent separation—cold ingredients won’t mix well with warm! The butter should be soft enough to leave an imprint when pressed but not overly soft. For accuracy, use a thermometer to check that both are between 68-72°F. If the frosting looks greasy or separated, chill for 20 minutes, then beat in ½-1 cup of sifted powdered sugar on low until smooth.
- Frosting Sweetness: For a less sweet, stronger Baileys flavor, reduce powdered sugar to 300 g (2½ cups), but note it won’t be pipeable and will need to be spread on top.
- Chocolate Syrup: If syrup thickens too much, add a little water. Can make ahead and store in the fridge for up to 1 week. Can sub with store bought.
- Cupcake Flavor: Best made ahead! Let unfrosted cupcakes sit for a few hours or overnight to deepen the chocolate and stout flavors and make them even more moist.
- Mixer: A hand or stand mixer can be used for the batter, just be careful not to overmix to prevent dense or crumbly cupcakes.
Happy baking! ❤️
Emma & Eric
@birchberryco Guinness Chocolate Cupcakes with Baileys Frosting 🧁 Full recipe is on our website, Birchberryco.com. Our first product is launching in the U.S. in 2025! Sign up for our email list to get updates and be the first in line! #chocolate #cupcakes #stpatricksday#dessert #baking #recipe #baketok #bakingtiktok #bakingtherapy #aesthetic #asmr ♬ original sound - alex