Name: White Chocolate Cake with White Chocolate Buttercream Recipe
Prep time: 20 min
Cook time: 25 min
Total time: 45 min
Cuisine: Western
Ingredients: 240 g self-raising flour (plus an extra ½ tsp for coating chocolate chips); 200 g margarine or butter (soft, at room temperature); 200 g caster sugar; 2 large eggs; 80 g full-fat natural or Greek yogurt; ½ tsp bicarbonate of soda; 200 g white chocolate chips or finely chopped white chocolate; ¼ tsp vanilla extract; 175 g butter (soft, at room temperature); 175 g icing sugar; 140 g white chocolate; Milk (a little, if needed to adjust buttercream consistency)

If you’re a fan of indulgent desserts that feel like a warm hug, this White Chocolate Cake with White Chocolate Buttercream Recipe is going to be your new absolute favorite. This cake is a dreamy, soft sponge bursting with white chocolate chips, then topped with the creamiest, smooth white chocolate buttercream you can imagine. Every bite melts in your mouth, delivering that rich sweetness with just the right balance of lightness and buttery texture. It’s perfect for celebrations or whenever you’re craving a special treat that’s just a little bit luxurious yet entirely approachable.

Ingredients You’ll Need

Gathering your ingredients for this White Chocolate Cake with White Chocolate Buttercream Recipe is a simple and joyful step. Each ingredient plays a special role, from creating a tender sponge to crafting a luscious frosting that complements the cake perfectly.

Self-raising flour (240g plus ½ tsp): This gives the cake its soft and fluffy rise, with extra flour tossed with the chocolate chips to keep them perfectly distributed.
Butter or margarine (200g for cake, 175g for frosting): Soft and at room temperature, butter adds richness and moisture to both the cake and buttercream.
Caster sugar (200g): Provides just the right sweetness while helping the sponge’s tender crumb develop.
Large eggs (2): These bind the ingredients and add structure to the cake.
Full-fat natural or Greek yogurt (80g): Adds moisture and keeps the sponge wonderfully soft and tender.
Bicarbonate of soda (½ tsp): Helps the cake rise alongside the flour for a perfect crumb.
White chocolate chips (200g): Bursting with creamy sweet flavor, these are the star in the sponge, with some reserved to sprinkle on top.
Vanilla extract (¼ tsp): Enhances all the flavors, lifting the white chocolate to the next level.
Icing sugar (175g): Used in the buttercream to keep it smooth and sweet without graininess.
Milk (as needed): Added in small amounts to adjust the buttercream’s consistency for the perfect spreadable texture.

TIP

You’ll find the full ingredient list, instructions, and print option in the recipe card below.

How to Make White Chocolate Cake with White Chocolate Buttercream Recipe

Step 1: Prepare Your Cake Tins and Chocolate Chips

Start by preheating your oven to 180°C (or 160°C fan). Line two 20cm round sandwich tins with greaseproof paper or reusable baking liners to ensure your cake layers come out cleanly and effortlessly.

Next, give your white chocolate chips a gentle microwave touch for about 10 seconds—aim for tacky edges without melting completely. Toss these chips in the ½ teaspoon of flour. This simple trick keeps them from sinking to the bottom of the cake while baking.

Step 2: Cream Butter and Sugar

In a large bowl, cream together your soft butter (or margarine) and caster sugar until the mixture lightens in color and gains a fluffy texture. This step is crucial for creating the perfect light and tender cake crumb that melts in your mouth.

Step 3: Combine the Wet Ingredients

In a separate bowl, whisk together the eggs, natural yogurt, and vanilla extract until they’re just combined. Slowly add this mixture to your creamed butter and sugar, beating well between additions. Don’t worry if the batter looks a little split here; that’s the yogurt working its magic.

Step 4: Add Dry Ingredients and Fold in Chocolate Chips

Gently fold in the self-raising flour and bicarbonate of soda, careful not to overmix, to maintain that tender texture. Once combined, fold in about two-thirds of your flour-coated white chocolate chips, mixing evenly to spread those bursts of white chocolate throughout the batter.

Step 5: Bake the Sponge

Divide the cake mixture evenly between your two prepared tins, smoothing the surface with the back of a spoon. Sprinkle the remaining chocolate chips on top for a beautiful chocolate-studded finish. Bake for about 25 minutes, or until a skewer inserted in the center comes out clean. Let the cakes cool in their tins for 10 minutes, then transfer to a wire rack until completely cool.

Step 6: Make the White Chocolate Buttercream

While your cakes cool, melt the white chocolate gently over a bain marie or in short bursts in the microwave until smooth. Allow it to cool to room temperature but keep it runny for easy mixing.

Beat the soft butter and icing sugar until combined and smooth. Gradually add the cooled white chocolate, beating constantly to incorporate it smoothly into the buttercream. Adjust the consistency with small amounts of milk if needed; if your buttercream feels too soft, pop it in the fridge briefly to firm up before assembling your cake.

Step 7: Assemble Your Cake

Place one sponge layer on your serving plate and spread half of the white chocolate buttercream evenly using a palette knife. Top with the second sponge, then frost the top and sides with the remaining buttercream. Feel free to decorate your cake with freeze-dried raspberries and white chocolate shavings, adding a splash of color and texture that pairs wonderfully with this White Chocolate Cake with White Chocolate Buttercream Recipe.

How to Serve White Chocolate Cake with White Chocolate Buttercream Recipe

A slice of two-layer yellow cake with creamy white frosting between the layers and on top, decorated with small red sprinkles. The cake slice is on a white plate with a silver fork beside it. In the background, the whole cake is on a white cake stand, showing the same layers and frosting. To the left, there is a white vase with bright red flowers. The surface below is white marbled texture. photo taken with an iphone --ar 4:5 --v 7

Garnishes

Freeze-dried raspberries and white chocolate shavings aren’t just pretty—they bring a pop of tartness and crunch that perfectly contrast the creamy sweetness of the buttercream. You can also sprinkle crushed pistachios or edible gold leaf for a special touch depending on your occasion.

Side Dishes

This cake pairs beautifully with a simple cup of tea or coffee, or even a light, fruity sorbet if you want to balance the richness with something refreshing. Fresh berries on the side complement the flavors and add a natural brightness.

Creative Ways to Present

For a wow factor, serve individual slices with a drizzle of homemade raspberry coulis or a dollop of whipped cream. You could also stack cupcakes made from the same batter topped with the white chocolate buttercream for a fun twist that lets guests enjoy mini versions of this luscious cake.

Make Ahead and Storage

Storing Leftovers

Store your leftover cake covered in an airtight container in the fridge to keep the buttercream fresh. It will stay delicious for up to 3 days, allowing you to savor a slice or two whenever a sweet craving strikes.

Freezing

This White Chocolate Cake with White Chocolate Buttercream Recipe freezes well! Wrap individual slices tightly in plastic wrap and place in a freezer-safe container. Freeze for up to one month. To enjoy, thaw slices overnight in the fridge.

Reheating

When you’re ready to enjoy your leftover cake, bring slices to room temperature before serving. Avoid microwaving to protect the texture of the buttercream, but if you must, do so in short bursts at low power.

FAQs

Can I use white chocolate bars instead of chips in this recipe?

Absolutely! Just finely chop your white chocolate bars. Tossing the chopped pieces with flour before folding them in helps prevent them from sinking, just like with chips.

Is it okay to use Greek yogurt in the sponge?

Yes, full-fat Greek yogurt works beautifully here, adding moisture and a slight tang that balances the sweetness without compromising the soft texture.

What can I substitute for butter in the cake?

You can use margarine if you prefer or need a dairy-free option. Just make sure it’s soft and at room temperature for easy creaming with sugar.

How do I know when the cake is fully baked?

The best test is a skewer inserted into the center coming out clean or with just a few moist crumbs attached. The cake should spring back slightly when pressed gently on top.

Can I make the buttercream ahead of time?

Yes, you can make the white chocolate buttercream a day ahead and store it in the fridge. Before using, bring it back to room temperature and beat it again to restore its fluffy texture.

Final Thoughts

This White Chocolate Cake with White Chocolate Buttercream Recipe is truly a crowd-pleaser that never gets old. It’s that perfect balance of comforting and elegant, simple yet impressively delicious. I can’t recommend enough giving it a try — whether you’re celebrating a special moment or simply treating yourself to something sweet, this cake will become a treasured favorite in your baking repertoire.