Easy Air Fryer Guinness Chocolate Cake

The sound of Guinness hitting the pan still makes my kitchen feel like a cozy pub on a rainy afternoon. I stumbled onto this combo during a March dinner party when I realized halfway through prep that I was out of coffee for my usual chocolate cake.

My friend Sarah took one bite and literally stopped mid conversation, eyes wide. That cake has been requested at every gathering since.

Ingredients

• All-purpose flour: The foundation that holds everything together without becoming dense
• Granulated sugar: Sweetens but lets the Guinnessts deep flavors shine through
• Unsweetened cocoa powder: Go for Dutch processed if you want that really intense chocolate depth
• Baking soda: Reacts with the stout for the most impressive rise
• Salt: Just a pinch wakes up all the chocolate notes
• Guinness stout: Room temperature is key here cold beer shocks the batter
• Buttermilk: Creates tenderness and tang that balances the sweetness
• Unsalted butter: Melted and slightly cooled so it incorporates beautifully
• Large eggs: Also at room temperature for proper emulsification
• Vanilla extract: Pure extract always worth the extra cost

Instructions

Preheat your air fryer:

Set to 320°F and let it warm up for 5 full minutes while you prep

Prep your pan:

Grease and line a 7 inch round cake pan that fits comfortably in your basket

Whisk the dry ingredients:

Combine flour sugar cocoa powder baking soda and salt in a large bowl

Mix the wet ingredients:

Whisk together Guinness buttermilk melted butter eggs and vanilla until smooth

Combine the mixtures:

Pour wet into dry and stir until just combined some lumps are perfectly fine

Fill and smooth:

Pour batter into prepared pan and level the top with your spatula

Air fry to perfection:

Cook for 23 to 27 minutes until a toothpick comes out with just a few moist crumbs

Cool completely:

Let rest 10 minutes in the pan then transfer to a wire rack

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My dad now texts me every March asking if the Guinness cake is happening. It has quietly become tradition.

Making It Your Own

Sour cream instead of buttermilk creates an even denser fudge like crumb. I have also swapped in coffee stout for an extra mocha kick that absolutely works.

Serving Suggestions

A dusting of powdered sugar feels elegant but whipped cream takes it over the top. Warm cake with vanilla ice cream has ruined me for all other desserts.

Storage And Make Ahead Tips

This cake actually tastes better the next day as the Guinnessts flavor deepens. Wrap it tightly and it will stay moist on the counter for three days.

• Freeze individual slices wrapped in plastic for emergency treats
• The batter can be made the night before and stored in the fridge
• Bring cold ingredients to room temp before baking for the best rise

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Hope this cake brings as many cozy moments to your kitchen as it has to mine.

Your Recipe Questions Answered

→ Can I use other types of beer instead of Guinness?

Yes, any stout beer works wonderfully in this cake. Porter beer also creates excellent results. For an alcohol-free version, use non-alcoholic stout or replace with equal parts strong coffee mixed with a tablespoon of molasses.

→ What size air fryer do I need?

You'll need an air fryer with at least 5-quart capacity to accommodate a 7-inch round cake pan. Measure your air fryer basket height and diameter before starting to ensure proper fit and airflow.

→ How do I know when the cake is done?

Insert a toothpick into the center of the cake. It should come out with a few moist crumbs but not wet batter. The edges should pull slightly away from the pan, and the top should feel firm yet springy to the touch.

→ Can I make this cake without an air fryer?

Absolutely. Bake in a conventional oven at 350°F (175°C) for 30-35 minutes. The oven version yields similar results with the same rich, moist texture and deep chocolate flavor.

→ How should I store leftover cake?

Wrap the cooled cake tightly in plastic wrap or store in an airtight container at room temperature for up to 3 days. For longer storage, refrigerate for up to a week or freeze individual slices for up to 3 months.

→ What toppings work best with this cake?

Powdered sugar creates an elegant finish, but whipped cream, chocolate ganache, or cream cheese frosting complement the Guinness flavors beautifully. A scoop of vanilla ice cream makes it extra indulgent.