Rich, festive Irish-inspired cupcakes

These Chocolate Guinness Cupcakes with Baileys Frosting and Irish Whiskey Ganache Filling are the ultimate St. Patrick’s Day dessert for chocolate lovers. Deep cocoa flavor, smooth stout richness, and a creamy Irish cream frosting come together in one bakery-style cupcake that feels extra special without being impossible to make. The Guinness helps deepen the chocolate taste, the ganache center adds a luscious surprise, and the Baileys buttercream finishes each cupcake with a soft, silky sweetness. These festive cupcakes are perfect for parties, holiday dessert tables, and celebratory baking when you want something impressive, indulgent, and full of bold flavor. They look elegant, taste unforgettable, and deliver pure chocolate joy in every bite.

table of contents

Time Breakdown

Prep Time: 45 minutes
Cook Time: 20 minutes
Total Time: 1 hour 5 minutes

Servings: 12 cupcakes

Ingredients List

For the Chocolate Guinness Cupcakes

• 1/2 cup Guinness stout beer
• 4 ounces (113 grams / 1 stick) unsalted butter
• 6 tablespoons (30 grams) unsweetened cocoa powder
• 1 cup (125 grams) all-purpose flour
• 1 cup (200 grams) granulated sugar
• 3/4 teaspoon baking soda
• 1/2 teaspoon kosher salt
• 1 large egg
• 1/3 cup sour cream

For the Irish Whiskey Ganache Filling

• 4 ounces (113 grams) bittersweet chocolate, chopped
• 1/3 cup heavy cream
• 1 tablespoon unsalted butter, room temperature
• 1/2 tablespoon Irish whiskey, or to taste

For the Baileys Buttercream

• 4 ounces (113 grams / 1 stick) unsalted butter, room temperature
• 1 1/2 cups (150 grams) confectioners’ sugar
• 3 tablespoons Baileys Irish cream

Optional Garnish

• Chocolate shavings
• Cocoa powder dusting
• Green sprinkles
• Gold sanding sugar

Kitchen Tools You’ll Need

This recipe doesn’t require fancy gadgets, just a few reliable kitchen basics to keep everything simple and stress-free.

• 12-cup muffin pan
• Paper cupcake liners
• Small saucepan
• Mixing bowls
• Whisk
• Electric mixer or stand mixer
• Rubber spatula
• Piping bag
• Wide piping tip
• Small knife, melon baller, or cupcake corer
• Cooling rack

Step-by-Step Beginner-Friendly Instructions

1. Prep the pan and oven

Preheat your oven to 350°F (175°C). Line a 12-cup muffin tin with paper liners so the cupcakes release easily after baking.

2. Make the stout-chocolate base

In a small saucepan, combine the Guinness stout and butter over medium heat. Heat until the butter melts and the mixture starts to simmer. Add the cocoa powder and whisk until smooth and glossy. Set aside to cool slightly. 🍫

3. Mix the dry ingredients

In a large bowl, whisk together the flour, sugar, baking soda, and kosher salt until evenly combined.

4. Mix the wet ingredients

In another bowl, beat the egg and sour cream until smooth. Pour in the cooled stout-chocolate mixture and mix just until blended.

5. Combine batter

Add the dry ingredients to the wet mixture. Mix on low speed just until combined, then use a spatula to fold the batter until smooth and no flour streaks remain. Don’t overmix.

6. Fill and bake

Divide the batter evenly among the cupcake liners, filling each about 2/3 to 3/4 full. Bake for 17 to 19 minutes, or until a tester inserted into the center comes out clean. Let the cupcakes cool completely on a wire rack.

7. Make the ganache filling

Place the chopped bittersweet chocolate in a heatproof bowl. Heat the heavy cream until just simmering, then pour it over the chocolate. Let sit for 1 minute, then stir until smooth. Add the butter and Irish whiskey and stir until glossy. Let it cool until thick but still pipeable. If chilling in the fridge, stir every 10 minutes so it stays smooth.

8. Core the cupcakes

Once the cupcakes are fully cool, cut a hole in the center of each cupcake using a small knife, melon baller, or cupcake corer. Go about 2/3 of the way down without cutting through the bottom.

9. Fill the cupcakes

Transfer the ganache to a piping bag with a wide tip. Pipe ganache into each cupcake cavity until filled to the top. 😍

10. Make the Baileys buttercream

In a mixing bowl, beat the butter until fluffy. Gradually add the confectioners’ sugar, beating well after each addition. Drizzle in the Baileys Irish cream and continue whipping until smooth, light, and creamy. If it seems too soft, add a little more powdered sugar.

11. Frost and decorate

Pipe or spread the buttercream over each cupcake, fully covering the ganache center. Finish with chocolate shavings, cocoa powder, or festive sprinkles if desired. 🎉

Pro Tips Section

• Make ahead: Bake the cupcakes in advance and freeze them unfrosted for up to 2 weeks. Thaw, fill, and frost when needed.
• For cleaner filling: Chill the ganache until just thick enough to pipe so it stays in the center neatly.
• For stronger flavor: Add a tiny extra splash of Baileys to the frosting or whiskey to the ganache, but only a little so the texture stays balanced.
• Serving idea: These cupcakes are perfect with coffee after dinner or on a St. Patrick’s Day dessert board.

Nutrition Table

Serving Size	Calories	Protein	Carbs	Fat	Fiber	Sugar
1 cupcake	426	4g	48g	24g	2g	37g

Disclaimer

This dessert contains alcohol unless substitutions are used. Flavor intensity may vary depending on the brand of stout, Irish cream, and whiskey you choose. Always adjust fillings and frosting carefully so the texture stays smooth and stable.

Conclusion

These Chocolate Guinness Cupcakes with Baileys Frosting and Irish Whiskey Ganache Filling are rich, festive, and absolutely unforgettable. They bring together deep chocolate flavor, creamy frosting, and a luscious surprise center in one stunning dessert that feels perfect for St. Patrick’s Day or any special celebration. If you want a cupcake recipe that looks impressive and tastes even better, this is one worth sa