This birthday cake is a golden, close-textured vanilla sponge sandwiched with a silky buttercream and a thin layer of sharp raspberry jam, finished with a smooth coat of cream cheese frosting that sets just firm enough to hold its shape. It is the kind of cake that slices cleanly, holds its layers well, and has a tender, moist crumb that stays fresh for days. Reliable and elegant, it works equally well for a child’s birthday or an adult celebration, and is straightforward enough for a confident beginner to complete with a good result. From start to finish, including cooling time, it is ready in around 2 hours.

What sets this Mary Berry birthday cake apart is the balance between a properly buttery sponge and a frosting that is not overly sweet. The cream cheese in the topping cuts through the richness of the buttercream filling, giving the finished cake a more rounded flavour than a standard all-buttercream version.

Ingredients

For the sponge

225g unsalted butter, softened at room temperature
225g caster sugar
4 large eggs, at room temperature
225g self-raising flour, sifted
1 tsp baking powder
2 tsp vanilla extract
2 tbsp whole milk

For the buttercream filling

100g unsalted butter, softened
200g icing sugar, sifted
1 tsp vanilla extract
1 tbsp whole milk

For the jam layer

4 tbsp raspberry jam, seedless

For the cream cheese frosting

150g full-fat cream cheese, cold
75g unsalted butter, softened
300g icing sugar, sifted
1 tsp vanilla extract

To finish

Fresh raspberries or strawberries, to decorate
Edible sprinkles or birthday candles, optional

How to Make Mary Berry Birthday Cake

Prepare the tins: Preheat the oven to 180C (160C fan, Gas Mark 4). Grease two 20cm round sandwich tins and line the bases with baking parchment. Set both tins on the middle shelf.
Cream the butter and sugar: Beat the softened butter and caster sugar together using an electric hand mixer or stand mixer on medium speed for 4 to 5 minutes until the mixture is very pale and noticeably increased in volume. This extended beating traps air into the batter, which is what gives the sponge its lift.
Add the eggs: Break the eggs in one at a time, beating well after each addition. If the mixture begins to look curdled, add a tablespoon of the sifted flour between additions to bring it back together. Add the vanilla extract with the final egg.
Fold in the flour: Add the sifted self-raising flour and baking powder to the bowl. Using a large metal spoon or spatula, fold the flour in gently with sweeping figures-of-eight movements. Add the milk and fold again until just combined. Do not over-mix at this stage, as working the batter too hard develops the gluten and toughens the crumb.
Divide and bake: Divide the batter equally between the two prepared tins and smooth the tops level with a palette knife or the back of a spoon. Bake on the middle shelf for 22 to 25 minutes until the sponges are golden on top, have shrunk slightly from the sides of the tins, and a skewer inserted into the centre comes out clean.
Cool the sponges: Leave the cakes in their tins for 5 minutes before turning out onto a wire rack. Peel away the parchment and allow both sponges to cool completely before filling. Filling a warm sponge will melt the buttercream and cause the layers to slide.
Make the buttercream filling: Beat the softened butter on its own for 2 minutes until pale and creamy. Add the sifted icing sugar in two additions, beating on low speed at first to avoid a cloud of sugar, then increasing to medium until smooth. Add the vanilla extract and milk and beat for a further minute until the buttercream is light and fluffy.
Make the cream cheese frosting: Beat the softened butter first until smooth. Add the cold cream cheese and beat briefly just to combine, then add the sifted icing sugar and vanilla extract. Mix on low speed until the sugar is incorporated, then increase the speed and beat for 1 to 2 minutes. Using cold cream cheese keeps the frosting stable and prevents it from becoming too soft to spread.
Assemble the cake: Place one cooled sponge upside down on a cake board or serving plate, so the flat base faces upward. Spread the buttercream evenly to the edges, then spoon the raspberry jam on top and spread it over the buttercream layer. Place the second sponge on top, right way up, and press gently to level.
Frost and decorate: Spread the cream cheese frosting over the top and sides of the assembled cake using a palette knife. Work in sweeping strokes for a rustic finish, or smooth it with a scraper for a cleaner look. Arrange fresh raspberries or strawberries on top and add sprinkles or candles to serve.

Tips for the Best Mary Berry Birthday Cake

Why has my sponge come out dense and heavy instead of light?

The most likely cause is under-creaming the butter and sugar. The mixture needs a full 4 to 5 minutes of beating to look genuinely pale and voluminous before the eggs go in. A pale, fluffy butter mixture is the foundation of a light crumb.

Why did my sponge sink in the middle after coming out of the oven?

Opening the oven door before the sponge has set, usually in the first 15 minutes of baking, is the most common reason. The drop in temperature causes the structure to collapse before it has firmed. Set a timer and do not open the oven before 20 minutes.

How do I stop my cream cheese frosting from going runny?

Keep the cream cheese cold when you use it and do not over-beat once the cream cheese is in the bowl. Over-mixing breaks down the structure and makes the frosting loose. If it softens too much, refrigerate the bowl for 15 minutes before continuing.

Why is my sponge dry around the edges?

The cake has been overbaked or the oven runs slightly hot. Check the temperature with an oven thermometer and reduce by 5 to 10 degrees. Pull the cake from the oven as soon as the skewer comes out clean, as even a few extra minutes at this stage can dry the crumb noticeably.

How do I get both sponge layers to rise evenly?

Weigh the batter into each tin rather than estimating by eye, and use a set of digital kitchen scales. Even a 30g difference in batter weight will result in noticeably uneven layers once baked and stacked.

Serving Suggestions

Serve at room temperature, allowing the frosting to soften slightly from the fridge, for the best texture and flavour.
Pair with a pot of fresh English breakfast tea for an afternoon birthday spread.
Add a scoop of good-quality vanilla ice cream alongside each slice when serving as a dessert at a birthday dinner.
Place on a cake stand and surround the base with a small ring of fresh flowers or extra fruit for a simple centrepiece effect.
Dust the top lightly with a little icing sugar over the fruit before serving if skipping sprinkles, for a cleaner, more elegant finish.

Storage

Room temperature

Once assembled, store the cake in an airtight container at cool room temperature for up to 2 days, away from direct sunlight or heat sources.

Refrigerator

Because of the cream cheese frosting, the assembled cake should be refrigerated after the first day. Store covered in an airtight tin or cake box for up to 4 days in the fridge. Allow the cake to sit at room temperature for 30 to 45 minutes before serving, as the cold firms the crumb and mutes the flavour.

Freezing

The unfrosted sponge layers freeze well. Wrap each cooled layer individually in a double layer of clingfilm and then in foil, and freeze for up to 2 months. Defrost overnight at room temperature still wrapped, then fill and frost once fully thawed and at room temperature.

Nutrition

Calories: 520 kcal
Carbohydrates: 64g
Protein: 5g
Fat: 27g
Saturated Fat: 16g
Sodium: 185mg

Nutrition values are estimates based on standard ingredient weights and may vary depending on the specific brands used and the size of each slice.

FAQs

Can I use salted butter instead of unsalted butter in this birthday cake?

You can, but the overall flavour will be saltier and harder to control, particularly in the frosting. If salted butter is all you have, leave out any additional salt and taste the buttercream before adding more liquid.

Can I make this birthday cake the day before the party?

Yes, and it often tastes better for it. Bake the sponges, cool them completely, then wrap tightly in clingfilm and store at room temperature overnight. Make the frosting and assemble on the morning of the event, then refrigerate until an hour before serving.

What size tin works best for this birthday cake recipe?

Two 20cm round sandwich tins give the best proportion of height to diameter for this quantity of batter. Using larger 23cm tins will produce thinner, slightly drier layers, as the batter spreads further and bakes more quickly.

Can I swap the raspberry jam for a different flavour?

Strawberry jam works just as well and pairs cleanly with vanilla sponge. Apricot jam gives a more subtle, less sweet result and works particularly well for adult celebrations. Avoid jams with whole fruit pieces, as they make the layers harder to cut through cleanly.

Can I make this into a three-layer birthday cake instead of two?

Yes. Increase all the sponge ingredients by half (to 337g butter, sugar, and flour, and 6 eggs) and divide the batter between three 20cm tins. Adjust the filling quantities accordingly and allow an extra 5 minutes of baking time, checking with a skewer.

Conclusion

This Mary Berry birthday cake is a well-balanced, celebration-ready bake with a tender vanilla sponge, a lightly sharp jam and buttercream filling, and a cream cheese frosting that finishes cleanly without being overly sweet. The recipe yields 10 to 12 generous slices from a two-layer 20cm cake, making it ideal for most birthday gatherings without any scaling needed.

Whether it is for a first birthday or a fiftieth, this cake holds its shape, slices neatly, and keeps well for several days. If you found this recipe useful, share it with someone who needs a reliable birthday bake, or leave a comment below with how yours turned out. If you enjoyed this, you might also like the Mary Berry chocolate brownies tray bake recipe for another straightforward crowd-pleaser.