Okay, so, you know how sometimes you just *need* a showstopper dessert? One that’s perfect for birthdays, holidays, or even just a Tuesday night when you deserve a little extra something? Well, let me tell you, friends, this **Guinness Chocolate Layer Cake** is *it*. Seriously, it’s rich, decadent, and the secret ingredient – yep, you guessed it – Guinness beer, gives it this amazing depth of flavor you won’t believe. Think dark, moist chocolate with a hint of roasted malt, all wrapped up in a fluffy, creamy frosting.
I’ve been baking for ages, and this cake? It’s been a family favorite for years! I spent ages perfecting this recipe. The first time I made it, I was trying to impress my husband on his birthday. Let’s just say it worked! Now, it’s what everyone asks for – trust me, you’re going to love it.

Why You’ll Love This Guinness Chocolate Layer Cake
Okay, so, let me tell you why this cake is just plain *amazing*!
- Super Easy! Seriously, it’s not some super complicated recipe that’ll take you all day. You can whip this up in an afternoon, I promise!
- That Flavor! That Guinness beer adds such a deep, rich chocolate taste. It’s like a party in your mouth!
- Impressive Look! Layer cakes always get the “oohs” and “aahs,” and this one definitely delivers. You’ll feel like a total baking rockstar.
- Perfect for Any Occasion! Birthdays, holidays, a weekend treat, or even a simple ‘I deserve something yummy’ moment – this cake fits the bill!
Ingredients for the Perfect Guinness Chocolate Layer Cake
Alright, let’s get down to business – the ingredients! You know, baking is all about having the right stuff on hand. So, here’s what you’ll need to make this dreamy **Guinness Chocolate Layer Cake**. Get ready, because it’s going to be AMAZING!
- For the Cake:
- 1 ½ cups all-purpose flour: Yep, just regular ol’ flour.
- ¾ cup unsweetened cocoa powder: Dutch-processed is my go-to for that extra chocolatey punch!
- 1 ½ teaspoons baking soda & ¾ teaspoon baking powder: They’re best friends for a fluffy crumb!
- ½ teaspoon salt: Don’t skip this, it helps balance the sweetness.
- 1 ¾ cups granulated sugar: Sweetness is key!
- 2 large eggs: Make sure they’re at room temperature; it’s important.
- ¾ cup buttermilk: Adds moisture and tang.
- ½ cup vegetable oil: Keeps things moist!
- 2 teaspoons vanilla extract: Because, yum!
- 1 cup Guinness stout: The star of the show.
- For the Chocolate Frosting: (Use your favorite recipe or store-bought!)
See? Nothing too crazy, and so worth it!
Equipment You’ll Need
Okay, before we get to the fun part, let’s make sure you have all the right tools. Trust me, it makes the whole process smoother! You don’t want to get halfway through and realize you’re missing something (been there, done that!).
Here’s what you’ll need at the ready:
- Two 9-inch round cake pans: Non-stick makes it easier to remove the cake, but butter and flour work just as well!
- Large mixing bowls: You’ll need a couple.
- Stand mixer or hand mixer: Makes the creaming process a breeze, but a whisk works too!
- Whisk
- Wire rack: For those all important cooling steps.
- Oven
That’s it! Now we are ready to bake!
Step-by-Step Instructions: Making Your Guinness Chocolate Layer Cake
Okay, so, let’s get you baking this amazing **Guinness Chocolate Layer Cake**! Don’t worry, it’s easier than you think. Just follow these steps, and you’ll be on your way to chocolate heaven.
- Get the Oven Ready: First things first, preheat your oven to 350°F (175°C). Then, grease and flour those two 9-inch round cake pans. Or, you know, do what I do and use some cake goop — it’s the *best* for getting cakes out cleanly!
- Dry Ingredients Time: In a big bowl, whisk together your flour, cocoa powder, baking soda, baking powder, and salt. Make sure it’s all nice and mixed up.
- Wet Ingredients Unite: In a separate bowl (because you don’t want to overmix!), whisk together the sugar, eggs, buttermilk, oil, and vanilla extract. Whisking the ingredients together is important!
- Combine, Slowly! Slowly add the dry ingredients to the wet ingredients. Mix until just combined. You don’t want to over-mix – a few streaks of flour are okay!
- Guinness Magic: Gently stir in the Guinness stout. The batter will be a bit thin, that’s okay, because this is where the magic happens.
- Bake, Baby, Bake!: Pour the batter evenly into your prepared cake pans. Bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean.
- Cooling is Crucial: Let the cakes cool in the pans for about 10 minutes before inverting them onto a wire rack to cool completely. This part is super important!
- Frost Away!: Once the cakes are completely cool, frost with your favorite chocolate frosting.
And that’s all there is to it! Now, go enjoy!

Ingredient Notes and Substitutions for Your Guinness Chocolate Layer Cake
Okay, so, let’s chat about those ingredients! Sometimes, you just gotta know the why, right? Plus a few little swaps can make this cake work for almost anyone. Trust me, I’ve played around with this recipe *a lot*.
Cocoa Powder Lowdown
For the cocoa powder, I *always* recommend using Dutch-processed cocoa. It’s got a richer, darker flavor, and it really makes the chocolate shine. If you can’t find it, unsweetened cocoa powder works too, but your cake might be a *tad* less intense.
Flour Power
I usually just use all-purpose flour. But if you’re gluten-free, no worries! You can totally swap it for a good gluten-free all-purpose flour blend. Your cake might be a *little* denser, but it’ll still be delicious! I have made it with Bob’s Red Mill before, and it was perfect.
Dairy-Free Adventures
Want a dairy-free cake? Easy peasy! Just swap the buttermilk for plant-based buttermilk (I like oat milk or almond milk). And, of course, use a dairy-free frosting. Boom! Now it’s something everyone can enjoy.

Tips for Success: Achieving the Perfect Guinness Chocolate Layer Cake
Alright, friends, let’s talk about the tricks that’ll make your **Guinness Chocolate Layer Cake** a total knockout! Trust me, I’ve learned these the hard way, so you don’t have to!
Room temperature ingredients are key – they help everything mix together just right. Watch out for overmixing the batter – it can lead to a tough cake! You want a few flour streaks still. And how do you know if it’s done? The toothpick test, of course. Stick a toothpick in the middle; if it comes out clean (or with just a few moist crumbs), you’re golden! Leveling the layers before frosting gives you a professional look. Don’t worry; I’ll show you, too!

Make-Ahead & Freezer Tips for Your Guinness Chocolate Layer Cake
Okay, so, life gets busy, right? Don’t worry; you can totally get a head start on this **Guinness Chocolate Layer Cake**! I always prep when I can – it makes life *so* much easier. Here are my best make-ahead and freezer tips, because who doesn’t love a little baking convenience?
You can bake the cake layers a day in advance! Wrap them tightly in plastic wrap (I like to double-wrap), and store them at room temperature or in the fridge. Frosted? The cake lasts, covered, in the fridge for up to 3-4 days. For the freezer, wrap unfrosted layers really well and freeze for up to 2-3 months. Freeze the frosting separately, too, for easy use later!
Variations to Try with Your Guinness Chocolate Layer Cake
Okay, so, now you’ve got this amazing **Guinness Chocolate Layer Cake**, but you know me – I’m always thinking, “What *else* can we do?!” The fun part is, this cake is super versatile, so you can totally make it your own!
Want to go wild? Whip up a cream cheese frosting instead of chocolate – OMG! You could even add a shot of espresso to the batter for a mocha-Guinness experience. Or, fold in some chocolate chips for bursts of extra chocolatey goodness. Have fun, and let your imagination run wild! That’s the best part of baking, right?
Nutritional Information for Guinness Chocolate Layer Cake
Heads up, everyone! The nutritional info below is just an estimate, and can totally change depending on the brands and ingredients you use. Just a little disclaimer before we get to the good stuff!
Print
Guinness Chocolate Layer Cake
- Total Time: 50 min
- Yield: 10 servings
- Diet: Vegetarian
Description
A rich chocolate cake with Guinness, perfect for any occasion.
Ingredients
- 1 1/2 cups all-purpose flour
- 3/4 cup unsweetened cocoa powder
- 1 1/2 teaspoons baking soda
- 3/4 teaspoon baking powder
- 1/2 teaspoon salt
- 1 3/4 cups granulated sugar
- 2 large eggs
- 3/4 cup buttermilk
- 1/2 cup vegetable oil
- 2 teaspoons vanilla extract
- 1 cup Guinness stout
- Chocolate frosting
Instructions
- Preheat oven to 350°F (175°C). Grease and flour two 9-inch round cake pans.
- In a large bowl, whisk together flour, cocoa powder, baking soda, baking powder, and salt.
- In a separate bowl, whisk together sugar, eggs, buttermilk, oil, and vanilla extract.
- Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
- Stir in the Guinness stout.
- Pour batter into prepared pans and bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean.
- Let cool in pans for 10 minutes before inverting onto a wire rack to cool completely.
- Frost with chocolate frosting.
Notes
- For best results, use room temperature ingredients.
- You can make the cake a day ahead and store it in the refrigerator.
- Prep Time: 20 min
- Cook Time: 30 min
- Category: Dessert
- Method: Baking
- Cuisine: Irish




