Name: White Chocolate Mud Cake Recipe
Prep time: 20 min
Cook time: 1 h
Total time: 1 h 20 min
Cuisine: Australian
Ingredients: 200g butter, cubed; 250g white chocolate, chopped; 200ml boiling water; 1 cup caster sugar; 1 teaspoon vanilla essence; 2 eggs, whisked; 2 cups plain flour; 1 tsp baking powder; 1 tsp baking soda; ½ cup cream; 250g white chocolate

Jump to Recipe· 4.1 from 9 reviews

If you have a sweet spot for rich, decadent desserts, then this White Chocolate Mud Cake Recipe is about to become your next obsession. Imagine a luxuriously moist, dense cake bursting with creamy white chocolate goodness at every bite, crowned with a silky ganache that brings out its sweet, velvety charm. This cake is pure indulgence wrapped up in something surprisingly simple to make, perfect for celebrations or whenever you want to impress yourself and your guests with a treat that feels both elegant and comforting.

Ingredients You'll Need

A close-up view of thick, smooth light brown batter being poured from a glass bowl into a white rectangular baking dish lined with parchment paper. The batter forms soft waves and folds as it fills the base of the dish, showing a glossy, creamy texture. The edges of the parchment paper are folded unevenly inside the baking dish. The background is a white marbled surface. Photo taken with an iphone --ar 4:5 --v 7

The magic of this dessert lies in its straightforward yet powerful ingredients. Each element plays a key role in creating that signature rich texture and delicate sweetness that makes this cake unforgettable.

200g butter, cubed: Butter adds a creamy richness and tender crumb to the cake’s structure.
250g white chocolate, chopped: This is the star flavor, melting into the batter for that luscious, sweet depth.
200ml boiling water: Hot water helps melt ingredients beautifully and keeps the cake moist.
1 cup caster sugar: Fine sugar blends quickly and enhances the sweetness without grittiness.
1 teaspoon vanilla essence: Adds a warm, aromatic touch that complements white chocolate perfectly.
2 eggs, whisked: Eggs provide structure and moisture, binding everything together.
2 cups plain flour: The flour gives the cake its body and contributes to its dense, mud cake texture.
1 teaspoon baking powder: Helps the cake rise gently for a perfect balance—not too fluffy, just right.
1 teaspoon baking soda: Works with the other leavening agent for an even crumb.
½ cup cream: Essential for the luscious ganache topping, making it smooth and spreadable.
250g white chocolate (for ganache): Added into the cream, it creates that melt-in-your-mouth finish on top.

How to Make White Chocolate Mud Cake Recipe

Step 1: Prep Your Oven and Tin

Start by preheating your oven to 150°C fan bake for an even, gentle heat that suits this dense cake beautifully. Line an 18cm x 28cm rectangular cake tin with baking paper so your cake lifts out easily once baked.

Step 2: Melt Butter, White Chocolate, and Water

Pop the cubed butter, chopped white chocolate, and boiling water into a large glass bowl. Cover and microwave on high for 90 seconds—or until almost melted. Let it rest for a few minutes, then whisk gently to smooth out any lumps and combine into a glossy, silky mixture. This step is crucial for that signature fudgy texture.

Step 3: Add Sugar, Vanilla, and Eggs

Whisk in the caster sugar and vanilla essence next to infuse the mixture with sweet, fragrant goodness. Follow with the whisked eggs to give the batter body and richness. The batter will start to look beautifully thick and creamy here.

Step 4: Incorporate Dry Ingredients

Sift together your plain flour, baking powder, and baking soda before folding them into your wet mixture. Folding gently ensures the cake remains dense and moist rather than light and fluffy, which is exactly what you want in a mud cake.

Step 5: Bake to Perfection

Pour the batter into your prepared tin and bake for about 60 minutes. Keep an eye on it and test with a skewer; it should come out clean when the cake is perfectly cooked. Let it cool in the pan for 10 minutes, then transfer to a wire rack to cool completely—don’t rush this part or the ganache won’t sit quite right!

Step 6: Make the White Chocolate Ganache

In a glass bowl, microwave the cream for 40 seconds until warm. Add 250g of white chocolate and slowly stir until the mixture is completely combined into a smooth and glossy ganache. Allow this to cool slightly before spreading generously over the cooled cake, letting it set to a silky, inviting finish.

How to Serve White Chocolate Mud Cake Recipe

A square piece of golden-brown cake with a thick layer of creamy off-white frosting on top, sprinkled with white chocolate shavings. The cake is placed on a white plate with a textured surface. In front of the cake, a gold fork holds a small bite-sized piece of cake that shows the soft crumb and frosting. The background is a white marbled texture. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

While this cake shines on its own, a few thoughtful garnishes can up the wow factor. Fresh berries like raspberries or strawberries offer a lovely tart contrast against the sweet ganache. Alternatively, some toasted white chocolate shavings or a sprinkle of edible gold dust will add beautiful texture and sparkle.

Side Dishes

This cake pairs wonderfully with lightly whipped cream or vanilla bean ice cream to balance its rich sweetness. For a sophisticated touch, serve alongside a cup of freshly brewed coffee or a glass of sparkling dessert wine, perfect for celebrations or cozy afternoon treats.

Creative Ways to Present

Slice this cake into rustic squares and serve on pretty plates with a drizzle of berry coulis or caramel sauce to turn it into a stunning dessert centerpiece. For an extra special touch, stack smaller slices with layers of whipped cream and fresh fruit to make a white chocolate mud cake trifle that’ll wow any crowd.

Make Ahead and Storage

Storing Leftovers

Keep any leftover cake in an airtight container at room temperature for up to two days. To maintain that softness and prevent drying out, you can also store it in the fridge, but let it come back to room temperature before serving for the best texture.

Freezing

This cake freezes beautifully. Wrap it tightly in plastic wrap then foil to avoid freezer burn. It will keep for up to three months. When ready to enjoy, thaw it overnight in the fridge and bring to room temperature before serving.

Reheating

If you want to warm up a slice, pop it in the microwave for about 15-20 seconds to bring back that soft, gooey bliss. Just be cautious not to overheat and melt the ganache too much!

FAQs

Can I use milk chocolate instead of white chocolate?

This recipe is designed to highlight the unique creaminess of white chocolate, so swapping it out will change the taste and texture quite a bit. Milk chocolate will make a richer, less sweet cake, which can be delicious but is a different experience.

Is this cake gluten-free?

The traditional recipe calls for plain flour, which contains gluten. To make it gluten-free, substitute with a gluten-free plain flour blend and ensure your baking powder is gluten-free as well.

Can I make this cake in a round cake tin instead?

Absolutely! Use a round tin with a similar volume (around 18cm or 20cm) but keep an eye on baking times as it might cook a little faster or slower compared to the rectangular tin.

What if I don’t have a microwave?

You can melt the butter, white chocolate, and cream gently on the stove using a double boiler or a heatproof bowl over simmering water. Stir frequently to avoid burning the chocolate.

How long does this cake last once frosted?

Once frosted, it’s best enjoyed within three days when stored in the fridge. The flavors improve as it rests, but the texture is at its best fresh.

Final Thoughts

You’re going to love how effortlessly impressive this White Chocolate Mud Cake Recipe turns out. It’s one of those sweet treats that feels like a special occasion every time you slice into it. Whether you’re new to baking mud cakes or a seasoned pro, this recipe will quickly become a staple dessert in your kitchen—rich, indulgent, and totally irresistible. Give it a go and watch it disappear fast!