There’s something deeply satisfying about the scent of malty stout and bittersweet chocolate rising from the oven on a chilly March afternoon. Every year, when St. Patrick’s Day starts peeking around the corner, I find myself craving the celebration of bold flavors and cozy textures that a St. Patrick’s Day Chocolate Guinness Bundt Cake with Stout Glaze brings to the table. One slice, and you’ll taste that unmistakable Irish spirit—rich and fudgy, with just a whisper of hops and earthiness meeting velvet chocolate. It’s a cake that feels at home both at a lively pub party and when you quietly serve up a wedge while the rain taps at your window.

What Makes This St. Patrick’s Day Chocolate Guinness Bundt Cake with Stout Glaze So Irresistible
This isn’t your average chocolate cake. The combination of Guinness and chocolate is pure culinary magic—each bite is luxuriously moist and almost truffle-like, balanced by a subtle bitterness from the stout. The glossy, cocoa-laced glaze is just boozy enough to remind you you’re celebrating, yet gentle enough to keep things family friendly. There’s an inviting, grown-up edge, but the cake is still incredibly easy to pull together. Whether you’re hosting a St. Patrick’s Day bash or looking for a show-stopper dessert to impress your friends, this bundt cake always delivers that wow factor with minimal fuss.
Every Ingredient Counts in This Deeply Flavored Bundt Cake
Here’s a quick look at why every component of this cake matters:
- flour – forms the backbone of the cake, giving it just the right amount of structure and tenderness.
- Guinness stout – brings malty richness, a touch of bitterness, and unbeatable moisture; another dark stout can be swapped in, but Guinness really gives that Irish depth.
- Unsweetened Dutch-processed cocoa powder – gives an intense, almost smoky chocolate foundation; Dutch-processed keeps things smooth and dark.
- Baking soda – reacts with the acidic stout to help the cake rise, resulting in a soft, moist crumb.
- Unsalted butter – delivers melt-in-your-mouth richness and a tender texture.
- Granulated sugar – sweetens the cake and helps balance the deep cocoa and stout flavors.
- Eggs – hold everything together and add a bit of loft without heaviness.
- Sour cream – guarantees a moist interior and just a little extra tang, which sharpens the chocolate.
- Vanilla extract – softens some of the stout’s bitterness and rounds out the flavor.
- Powdered sugar (for the glaze) – makes the glaze silky and sweet, creating that signature sheen.
- More Guinness stout (for the glaze) – echoes the cake’s flavor and adds a lovely boozy note to each bite.
- Unsweetened cocoa powder (for the glaze) – deepens the glaze’s color and chocolate punch.
- Melted butter (for the glaze) – pulls the glaze together and helps it drape beautifully over every ridge.
See the recipe card below for the full list of ingredients and measurements.
Bringing This Chocolate Guinness Bundt Cake to Life Step by Step
There’s no need to be intimidated—this recipe moves swiftly, and the aroma in your kitchen will have everyone hovering around the oven. Here’s how it comes together:
- Start by preheating your oven, then generously grease and flour a bundt pan to guarantee a flawless release later.
- Mingle the dry ingredients: sift [flour](https://en.wikipedia.org/wiki/Flour), cocoa, and baking soda together until there are no lumps, then whisk in the sugar for even sweetness.
- Warm the butter with the Guinness just until the mix is cozy—don’t let it get too hot, or you’ll risk scrambling the eggs.
- In a separate bowl, whisk together the eggs, sour cream, and vanilla until smooth. Gently pour in the warm butter-stout combo, whisking the whole time to keep the mixture glossy and unified.
- Fold the wet ingredients into the dry. Stir just until the batter is combined—a few streaks are better than overmixing. The batter should be thick but pourable, with a rich cocoa color.
- Smooth the batter into your prepared bundt pan and give it a gentle tap to level everything out.
- Bake until the cake rises with a domed top and a tester comes out with a few moist crumbs—keep an eye on it, as ovens can run hot or cold.
- Let the cake cool in the pan briefly so the crumb sets. After turning it out, make sure it’s completely cool—this helps your glaze coat beautifully.
- Whip up the glaze by whisking powdered sugar, cocoa, melted butter, and a splash of Guinness until it’s thick but pourable—you want it to cascade in glossy ribbons, not run off the cake.
- Drizzle the glaze in slow, generous streams. Let it set just until the sheen turns satiny before slicing in for that perfect cross-section.
The Secret to That Glossy Stout Glaze and a Moist Crumb
Nailing the perfect texture is what elevates this St. Patrick’s Day Chocolate Guinness Bundt Cake with Stout Glaze from good to unforgettable. The Guinness does double duty—not only does it deepen the chocolate flavor, it also ensures the crumb stays tender for days. Just be sure the cake is fully cooled before drizzling with glaze, or you’ll lose that beautiful sheen. Don’t skip the step of warming the butter and stout together, either—it helps blend the flavors and keeps the batter smooth. And when it comes to the glaze, stir in the Guinness a little at a time until you hit that sweet spot where the glaze runs off a spoon in slow ribbons, thick enough to coat but not stiff. The result? A dramatic, almost mirror-like finish that slices clean every time.
Serving Suggestions, Variations, and Storing Your Bundt Cake
This cake works beautifully as a centerpiece for St. Patrick’s Day, but I won’t judge if you bring it out for birthdays or Sunday dinners. It’s bold enough to stand alone—just a thick slice and perhaps a dollop of barely-sweetened whipped cream or a scoop of vanilla ice cream. If you want more drama, sprinkle crushed chocolate-covered espresso beans on the glaze for a little crunch, or decorate with a dusting of cocoa.
If you’re looking to swap ingredients, a good-quality chocolate stout will work in place of Guinness, and Greek yogurt can pinch-hit for sour cream. Make sure not to overbake—the cake should stay slightly springy, never dry.
To store, cover slices tightly and keep at room temperature for up to three days; this keeps the crumb tender and moist. It also freezes beautifully—just wrap individual slices and thaw overnight when a craving hits. If you make it a day ahead, don’t glaze until close to serving for the glossiest finish.
FAQs about St. Patrick’s Day Chocolate Guinness Bundt Cake with Stout Glaze
Can I use a different stout instead of Guinness in this cake?
Yes, you can substitute another dark stout if you don’t have Guinness on hand. Just choose one with a rich, malty flavor for the best taste and texture—the cake will still come out moist and deeply chocolatey.
What’s the best way to keep my St. Patrick’s Day Chocolate Guinness Bundt Cake moist?
To keep the cake at its most tender, store it tightly wrapped at room temperature. If you’re making ahead, wait to glaze until just before serving and avoid refrigerating, as that can dry out the crumb.
Can the cake and glaze be made ahead for a celebration?
Absolutely! Bake the cake the day before and let it cool completely, then wrap tightly. Prepare and drizzle the glaze shortly before serving for the freshest gloss and flavor.
Is it possible to freeze leftover cake, and how should I do it?
You can freeze individual slices (with or without glaze) by wrapping them well in plastic wrap, then foil. Thaw overnight at room temperature—when you’re ready, the cake will be as moist as when you first baked it.
How can I add a festive touch to this St. Patrick’s Day Chocolate Guinness Bundt Cake with Stout Glaze?
Try finishing the glazed cake with chocolate shavings, a dusting of cocoa, or even green sprinkles for a whimsical nod to the holiday. Serve with whipped cream, ice cream, or alongside an Irish coffee for the ultimate celebration.
Rich, moist, and carrying that unmistakable hint of stout, this St. Patrick’s Day Chocolate Guinness Bundt Cake with Stout Glaze is a dessert that brings everyone together. I love serving it after a hearty dinner, but nothing beats stealing a quiet slice with a good book and a mug of coffee the next morning. However you enjoy it, every bite is a cozy, delicious nod to Irish cheer.
More Delicious Recipes
- Tiramisu Chocolate Layer Cake: This cake incorporates rich chocolate and coffee flavors, making it a great follow-up to your stout cake with a similar indulgent vibe.
- Cocoa Marshmallow Cupcakes: These cupcakes feature delicious cocoa and offer a sweet twist, perfect for satisfying those chocolate cravings.
- Buffalo Chicken Sliders: If you’re hosting a gathering, these sliders bring some savory flavor to balance the rich sweetness of the bundt cake.

Easy St. Patrick's Day Chocolate Guinness Bundt Cake with Stout Glaze
Equipment
- 10-inch bundt pan
- mixing bowl
- small saucepan or microwave-safe bowl
Ingredients
Ingredients
- 12 fl oz Guinness Stout
- 2 cups all-purpose flour
- 3/4 cup unsweetened Dutch-processed cocoa powder
- 2 teaspoons baking soda
- 1/2 cup unsalted butter, melted
- 1 1/2 cups granulated sugar
- 2 large eggs, room temperature
- 1/2 cup sour cream
- 1 teaspoon vanilla extract
For the glaze:
- 1 cup powdered sugar
- 2-3 tablespoons Guinness Stout
- 1 tablespoon unsweetened cocoa powder
- 1 tablespoon butter, melted
Instructions
Instructions
- Preheat oven to 350°F (175°C). Grease a 10-inch bundt pan thoroughly with butter or non-stick spray, then dust with flour or cocoa powder to prevent sticking.
- In a large bowl, sift together the flour, cocoa powder, and baking soda. Whisk in the sugar until evenly mixed.
- Melt the butter gently in a small saucepan or microwave-safe bowl. Pour in the Guinness stout and heat until just warm, about 1-2 minutes.
- In a separate bowl, whisk the eggs, sour cream, and vanilla extract until smooth. Slowly pour the warm Guinness and butter mixture into the eggs, whisking constantly to prevent scrambling.
- Pour the wet mixture into the dry ingredients. Stir gently with a spatula or wooden spoon until just combined. Do not overmix.
- Pour the batter evenly into the prepared bundt pan. Shake gently to level the batter.
- Bake for 45-50 minutes, or until a toothpick inserted near the center comes out clean or with a few moist crumbs.
- Let the cake cool in the pan on a wire rack for 15 minutes. Then invert onto the rack to cool completely before glazing.
- To make the stout glaze, whisk together powdered sugar, cocoa powder, melted butter, and 2 tablespoons Guinness stout in a small bowl. Add more stout a teaspoon at a time until glaze is pourable but thick enough to coat the back of a spoon.
- Drizzle the stout glaze over the cooled cake in a slow, steady stream. Let set for about 10 minutes before slicing.






