Desserts
This Cadbury chocolate cake delivers the rich, velvety texture you crave with a secret espresso boost that deepens the chocolate flavor. The key lies in using high-quality Cadbury chocolate bars melted into the batter, creating layers of moist, fudgy perfection that'll disappear faster than you can say "second slice."
I've perfected this recipe over years of baking, ensuring every bite delivers that signature Cadbury taste with just the right balance of sweetness and depth.
The secret to achieving that professional bakery quality at home is a combination of precise ingredient ratios and proper mixing techniques. You'll need just 9 ingredients including Cadbury chocolate bars, espresso powder, and buttermilk for that signature moist texture.
The cake bakes at 350°F for about 30-35 minutes, resulting in layers that stay tender even after cooling.
What sets this recipe apart is the espresso boost, which enhances the chocolate flavor without adding bitterness. The result is a cake with rich, complex chocolate notes that linger on your palate.
Each layer remains moist and flavorful, making it perfect for special occasions or when you simply need a chocolate fix.
Once baked, you can frost it with classic buttercream or keep it simple with a dusting of cocoa powder. The possibilities are endless, but the cake itself is so delicious that many prefer it unfrosted. Let's get baking!
Ingredients for cadbury chocolate cake
Nine essential ingredients for a decadent, moist Cadbury chocolate cake with deep espresso notes.
| Ingredient | Amount | Notes |
|---|---|---|
| Cadbury Chocolate Bars (70% Cocoa) 🍫 | 8 oz | High-quality, chopped finely |
| All-Purpose Flour 🌾 | 2 ½ cups | Sifted for light texture |
| Granulated Sugar 🍚 | 2 cups | White or light brown |
| Espresso Powder ☕ | 2 tbsp | Instant, finely ground |
| Unsalted Butter 🧈 | 1 cup | Room temperature, full-fat |
| Buttermilk 🥛 | 1 cup | Room temperature, full-fat |
| Large Eggs 🥚 | 2 whole | Room temperature, separated |
| Baking Powder 🍞 | 1 tsp | Aluminum-free preferred |
| Vanilla Extract 🌿 | 1 tbsp | Pure Madagascar bourbon |
| Cocoa Powder (Dutch Process) 🍫 | ½ cup | High-quality, unsweetened |
| Salt 🧂 | ½ tsp | Fine sea salt |
The Cadbury bars are non-negotiable—70% cocoa delivers that signature rich flavor. Trader Joe's and Whole Foods carry the best quality, but any store's Cadbury will work. Chop them finely so they melt evenly into the batter. Espresso powder is key for that subtle depth without bitterness—Starbucks or Lavazza are reliable brands. For the butter, Plugrá or Land O'Lakes work perfectly, just make sure it's fully softened before mixing. The buttermilk adds moisture, so don't substitute with regular milk or yogurt unless you're willing to add an extra acidifier like vinegar.
No espresso powder? Instant coffee granules at double the amount will work in a pinch, but the flavor won't be as refined. Freshly ground espresso would be ideal, but that's overkill for home baking. The cocoa powder can be swapped for natural cocoa powder, but Dutch-processed gives a smoother finish. For a lighter cake, substitute half the butter with applesauce, though you'll lose some richness. If you're avoiding eggs, aquafaba (chickpea brine) works at 3 tbsp per egg, though the texture won't be identical. The vanilla extract is where you can splurge—Madagascar bourbon has a more complex flavor than imitation extracts.
Store the chopped chocolate bars in an airtight container in the fridge for up to 3 days to keep them fresh. The batter can be prepped ahead and refrigerated for 12 hours before baking—just let it sit at room temperature for 30 minutes before pouring. The baked cake keeps well wrapped at room temperature for 3 days or in the fridge for 5 days. For longer storage, slice and freeze individual portions for up to 3 months. The espresso flavor actually intensifies slightly as the cake sits, so it's worth making ahead for special occasions.
Why You'll Love This Recipe
- No Mixer Needed: I swear by this recipe when my mixer’s on the fritz—just melt butter, whisk eggs, fold in flour. The espresso powder cuts through the richness, and the Cadbury’s 70% cocoa does all the heavy lifting. Honestly, it’s the kind of cake that makes me feel like a baking genius without any effort.
- Deep Chocolate Fix: That first bite? Chef’s kiss. The Cadbury bars melt into fudgy layers while the espresso powder adds this subtle, sophisticated kick—like a grown-up version of your favorite childhood cake. Between us, it’s the only chocolate cake I’ll bake now.
- Birthday or Boredom: I’ve made this for birthdays, book club meetups, and even a lazy Sunday afternoon. The rich flavor holds up to crowds, and the dense texture means it doesn’t dry out fast. (Yes, even on a Tuesday night when you’re craving something indulgent.)
- Budget Luxury: I use store-brand butter and flour, but the Cadbury bars give it that premium feel for pennies. A single batch feeds six, and leftovers? They disappear faster than I can say “second slice.” It’s my go-to when I want to treat myself without breaking the bank.
Step-by-step instructions for Cadbury chocolate cake
Here's how to bake a decadent, ultra-moist chocolate cake with that signature Cadbury depth.
Melt and Infuse the Chocolate
In a heatproof bowl set over a saucepan of simmering water, melt the 8 oz Cadbury Chocolate Bars (70% Cocoa) along with the 1 cup unsalted butter. Stir gently until completely smooth and glossy. Remove from heat and whisk in the 2 tbsp espresso powder and 0.5 cup cocoa powder (Dutch Process). The mixture should darken slightly and develop an intense chocolate aroma—this is where the magic happens.
Let the chocolate mixture cool slightly while you prepare the dry ingredients. I like to spread plastic wrap directly on the surface to prevent a skin from forming. The espresso powder here enhances the chocolate flavor while adding subtle complexity that balances the sweetness.
Combine Wet Ingredients
In a separate large bowl, whisk together the 2 cups granulated sugar and 2 whole large eggs until fully combined and slightly thickened. This step is crucial for creating a tender crumb. Add the 1 cup buttermilk, 1 tbsp vanilla extract, and 0.5 tsp salt, whisking until smooth. The buttermilk adds moisture while keeping the cake tender rather than dense.
Gradually pour the melted chocolate mixture into the wet ingredients while whisking constantly. The batter should be thick but pourable, with a rich, velvety texture. If it's too thick, add 1-2 tablespoons of buttermilk to reach the perfect consistency. This ensures even distribution of all ingredients and prevents dry spots in the final cake.
Fold in Dry Ingredients
Sift the 2.5 cups all-purpose flour and 1 tsp baking powder together into the wet mixture. Using a spatula, gently fold everything together just until combined—you should still see some flour streaks. Overmixing develops gluten, which can make the cake tough. The goal is to maintain that ultra-moist texture we're aiming for.
Here's a pro tip: Instead of mixing all at once, fold in the dry ingredients in two additions. This helps prevent lumps and ensures even distribution. The batter should be thick but still flow smoothly when poured. If you're worried about under-mixing, remember that a slightly uneven batter often yields a more tender cake than one that's overworked.
Bake to Perfect Doneness
Preheat your oven to 350°F and grease two 8-inch round cake pans or line them with parchment paper. Divide the batter evenly between the pans and smooth the tops. Bake for 30-35 minutes until a toothpick inserted in the center comes out with just a few moist crumbs—this is your signal that the cake is perfectly moist, not dry.
I always check for doneness at the 28-minute mark because ovens vary. The edges should be set but the center should still look slightly underdone. This ensures maximum moisture retention. Let the cakes cool in their pans for 10 minutes before transferring to a wire rack to cool completely. The cooling process allows the moisture to distribute evenly throughout the cake.
Pro Tips For Making Cadbury Chocolate Cake
- MELT CHOCOLATE LOW: Use a double boiler or microwave in 20-second bursts—Cadbury’s 70% cocoa burns fast if you rush it. I learned this the hard way when my first batch turned into a bitter sludge instead of smooth ganache.
- SIFT THE FLOUR: Skip the sifting, and your cake will be denser than a brick. Tap the flour into the bowl with a spoon first, then whisk it in—this cuts out lumps and keeps the texture light.
- DON’T OVERMIX: Once the wet and dry ingredients come together, mix just until combined. After burning three batches, I finally figured out that overmixing turns this cake into a chewy, sad pudding instead of a rich, airy delight.
- USE COLD BUTTER: Cut the butter into cubes and let it sit in the fridge until you’re ready to cream it with sugar. Cold butter creates flakier layers—yes, even in cake—and prevents the batter from turning greasy. (Your future self will thank you.)
Dietary considerations for cadbury chocolate cake
Gluten-Free Adaptation
Replace the 2.5 cups all-purpose flour with a 1:1 gluten-free baking flour blend like King Arthur Measure for Measure or Bob's Red Mill 1-to-1. Add 1 extra tablespoon of xanthan gum to the dry ingredients to improve texture and binding.
The espresso powder and Cadbury chocolate remain the same, but you may need to increase the buttermilk by 2 tablespoons since gluten-free batters tend to be drier. Bake at 350°F for 35-40 minutes—gluten-free cakes often need slightly longer baking times. 🥖
Dairy-Free Options
Swap the 1 cup unsalted butter for 1 cup dairy-free butter alternative like Miyoko's Creamery or Earth Balance. Use 1 cup unsweetened almond milk mixed with 1 tablespoon lemon juice to replace the buttermilk.
For the eggs, add 3 tablespoons ground flaxseed mixed with 9 tablespoons water (let sit for 5 minutes to thicken) as a binder. The texture will be slightly denser but still rich and moist. 🥛
Lower-Sugar Version
Reduce the 2 cups granulated sugar to 1.5 cups and replace the remaining 0.5 cup with 0.5 cup monk fruit sweetener or 0.5 cup coconut sugar. The espresso powder enhances the chocolate flavor, so you won’t miss the missing sweetness as much.
Add 1 teaspoon apple cider vinegar to the buttermilk to boost leavening. The cake will still be decadent but with fewer calories and a lower glycemic impact. 🍚
Nut-Free Considerations
This recipe is naturally nut-free, but always check your Cadbury chocolate bars and cocoa powder for cross-contamination warnings. If using almond milk or dairy-free butter alternatives, opt for brands labeled nut-free.
Store all ingredients in sealed containers to prevent accidental cross-contact. The buttermilk and vanilla extract are also safe for nut-free diets. Always double-check labels before baking. 🌱
Egg-Free Substitution
Replace the 2 eggs with 2 tablespoons ground flaxseed mixed with 6 tablespoons water (let sit for 5 minutes to thicken). Alternatively, use 2 tablespoons aquafaba (chickpea brine) per egg. The texture will be slightly denser, but the espresso and Cadbury chocolate still create that rich, moist crumb.
For extra binding, add 1 tablespoon extra buttermilk to the wet ingredients. 🥚
Nutrition facts
Frequently asked questions
Can I substitute regular cocoa powder for Dutch-processed?
You can use natural cocoa powder, but the cake will have a slightly different texture and color. Dutch-processed cocoa is smoother and creates a richer, more velvety crumb. For best results, stick with Dutch-processed, but if you must substitute, reduce the baking powder by ¼ teaspoon since natural cocoa is more acidic. The espresso will still enhance the chocolate flavor beautifully.
Why does my Cadbury chocolate cake turn out dense?
Overmixing the batter or using too much flour are the most common causes. Gently fold the dry ingredients just until combined—you should still see flour streaks. Also, make sure your butter is fully softened but not melted, and don't skip the buttermilk, which adds moisture. If your oven runs hot, reduce the temperature to 340°F and check for doneness at 25 minutes.
How do I store leftover Cadbury chocolate cake?
Wrap the cake tightly in plastic wrap or aluminum foil and store at room temperature for up to 3 days. For longer storage, slice and freeze individual portions in airtight containers for up to 3 months. Thaw overnight in the fridge before serving. The espresso-infused flavor actually intensifies slightly as the cake sits, making it even more delicious the next day!
Can I make this cake in a single layer instead of two? Simply use one 9-inch round pan or 8-inch square pan and reduce the baking time to 25-30 minutes. For a taller cake, use a 6-inch round pan and bake for 40-45 minutes. The espresso and Cadbury chocolate will still shine through, whether you prefer a single-layer slice or traditional layers. Just
What's the best way to frost this cake?
Classic buttercream made with 1 cup softened butter, 3 cups powdered sugar, and ¼ cup heavy cream pairs perfectly. For extra Cadbury flavor, add 2 oz melted Cadbury chocolate to the buttercream. Alternatively, a simple dusting of cocoa powder or a light layer of ganache (melted chocolate + heavy cream) keeps the focus on the cake's rich, moist texture.