Guinness Chocolate Layer Cake

A rich Guinness chocolate layer cake with stout in the batter, currants folded throughout, a dark chocolate stout syrup brushed over the layers, tart currant jelly between them, and a thick coating of bittersweet chocolate icing.

Course Dessert

Cuisine American, Irish Dessert, Irish-Inspired

Keyword chocolate cake with stout, chocolate stout cake, Guinness chocolate layer cake, Guinness stout chocolate cake, Guinness stout chocolate layer cake, stout dessert

Prep Time 40

Cook Time 40

Additional Time: 4 30

Total Time 5 50

Servings slices

Calories 640kcal

Author Cathy Pollak

Equipment

mixing bowls (heatproof). Needed for making the chocolate ganache base for the icing.
Saucepan (heavy). Used for preparing the chocolate stout syrup and heating the stout mixture.
2 8-inch cake pan For evenly sized layers for stacking and filling.
Stand Mixer hand mixer. Used to cream the butter and sugar and whip the icing until smooth and spreadable.
rubber spatula Useful for folding the batter and spreading the icing smoothly.

Ingredients

Instructions

The icing requires a 4-hour lead time, so it is best to begin with it first so it will be ready when the cake finishes baking. Read through the entire recipe before starting. Instructions for the icing are at the end of the recipe.
To prepare the drizzling syrup, combine all ingredients in a small heavy saucepan, whisking until smooth. Heat over medium heat until the sugar dissolves and the syrup becomes smooth. Remove from the heat and set aside.
⅓ cup (79 ml) Guinness stout (measured after foam subsides), ⅓ cup (71 g) dark brown sugar, 3 tbsps (15 g) unsweetened cocoa powder, 1 tsp (5 ml) vanilla extract
Pour the Guinness stout over the currants and let them soak until plump, about 15 minutes. Drain the currants, reserving the Guinness stout. Add the reserved Guinness stout to a small saucepan and whisk in 1/3 cup (27 g) cocoa. Bring the mixture to a simmer, then remove from the heat and add the semisweet chocolate, stirring until melted and smooth. Let the mixture cool slightly, then stir in the buttermilk.
⅔ cup (158 ml) Guinness stout (measured after foam subsides), ⅔ cup (55 g) dried Zante currants , ⅓ cup (27 g), plus 2 tbsps (10 g) unsweetened cocoa powder, 2 oz (58 g) semisweet chocolate, chopped into small pieces , ¾ cup (177 ml) buttermilk
Preheat the oven to 350 degrees F (175°C). In a small bowl, combine the remaining 2 tablespoons (10 g) unsweetened cocoa, 2 tablespoons (25 g) granulated sugar, and 2 tablespoons (16 g) flour. Coat two 8-inch (20 cm) round cake pans with cooking spray, then dust them with the cocoa mixture, shaking out any excess.
1¾ cups (350 g), plus 2 tbsps (25 g) granulated sugar, 2 cups (240 g), plus 2 tbsps. (16 g) all-purpose flour, cooking spray
In a mixing bowl, beat the butter with a mixer at medium speed until smooth. Gradually beat in the remaining 1¾ cups (350 g) sugar until well blended. Add the eggs one at a time, beating well after each addition, then beat in the vanilla extract.
⅔ cup (151 g or 1-1/3 sticks) butter, 4 large eggs, 1½ tsps (8 ml) vanilla extract
In a separate bowl, combine the remaining 2 cups (240 g) flour with the baking soda, baking powder, and salt. Add the flour mixture to the butter mixture alternately with the chocolate mixture, beating on low speed just until blended. Do not overmix. Stir in the currants.
1½ tsps (6 g) baking soda, ½ tsp (3 g) baking powder, ¼ tsp (2 g) table salt
Divide the batter evenly between the prepared pans. Bake for 40 minutes, or until a wooden pick inserted in the center comes out clean. Cool the cakes in the pans on a wire rack for 10 minutes, then invert onto a rack and allow them to cool for another 30 minutes.
Once the cake layers have cooled slightly, poke the tops with a skewer or toothpick. Spoon the drizzling syrup evenly over the layers. Place one cake layer on a serving platter and spread the warmed jelly evenly over the top. Refrigerate for 30 minutes. Spread about one quarter of the bittersweet icing over the chilled jelly layer, then place the second cake layer on top and finish icing the entire cake.
½ cup (180 g) red currant jelly, warmed (Bonne Maman is the easiest brand to find (sub with grape jelly if you cannot find))
While the cake layer is chilling, prepare the icing. Bring the cream to a simmer, taking care not to scorch it. Place the chocolate in a heatproof bowl, pour the hot cream over it, and whisk until the chocolate melts and the mixture is completely smooth. Cover and chill for 4 to 6 hours.
1½ cups (360 ml) heavy cream, 6 oz (170 g) dark chocolate (85% cacao), chopped
After chilling, the chocolate mixture will be firm. Place the bowl briefly over warm water to begin softening it. Once loosened, sift in the confectioners' sugar, unsweetened cocoa, vanilla, and salt. Using a hand mixer, whip until the icing is smooth and spreadable.
4½ tbsps (35 g) confectioners' sugar, 4½ tbsps (23 g) unsweetened cocoa powder, 1½ tsps (8 ml) vanilla extract, ⅛ tsp (1 g) table salt
You can garnish the cake with mini chocolate chips if you like. Because the icing is cream based, store the cake in the refrigerator.
Garnish: (optional) mini chocolate chips

Notes

The icing must chill for several hours before whipping, so starting it first makes sure it will be ready when the cake layers are assembled.
Guinness stout deepens the chocolate flavor in the cake while keeping the crumb moist.
If red currant jelly is difficult to find, grape jelly is the closest substitute.

If you’re making this Guinness Chocolate Layer Cake, check out the full post. That’s where I keep extra tips, FAQs, and details that don’t always make it into the recipe card

Nutrition info is an estimate and will vary depending on the brands you use.

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Nutrition