This soft layered Mary Berry Celebration Cake is made with self-raising flour, vanilla buttercream, and ready in 60 minutes. Slicing through the thick sponge reveals a bright ribbon of strawberry jam contrasting perfectly with the pale frosting. I always rely on this simple method for birthdays because it never sinks.

Why This Classic Works

I used to overmix my cake batters, resulting in a dense, heavy sponge that disappointed everyone at the party. Switching to this straightforward all-in-one method completely changed how I bake tall layer cakes. The balance of soft butter and exact measurements of baking powder ensures a perfectly level rise every single time.

I was genuinely surprised at how much easier it is to frost when the layers bake completely flat. Skipping the long creaming process saves time without sacrificing that light, tender crumb we expect from a good birthday bake.

Mary Berry Celebration Cake Ingredients

For the Sponge:

300g softened butter
300g caster sugar
300g self-raising flour
1.5 tsp baking powder
6 large eggs
2 tbsp milk
1 tsp vanilla extract

For the Filling and Frosting:

250g softened butter
500g icing sugar
1 tsp vanilla extract
150g strawberry jam
Fresh strawberries to decorate

How To Make Mary Berry Celebration Cake

Prep the Tins: Preheat your oven to 180C (160C fan) and grease three 20cm round cake tins, lining the bases with baking paper.
Mix the Batter: Combine the butter, sugar, flour, baking powder, eggs, milk, and vanilla in a large mixing bowl. Beat with an electric mixer for two minutes until thoroughly blended and smooth.
Bake the Sponges: Divide the mixture evenly between the prepared tins and level the tops with a spatula. Bake for 25 to 30 minutes until golden and springy to the touch.
Cool the Cakes: Leave the baked sponges in their tins for 5 minutes before turning them out onto a wire rack. Peel off the baking paper and let them cool completely.
Make the Buttercream: Beat the softened butter until extremely soft, then gradually whisk in the icing sugar and vanilla extract until pale and fluffy.
Assemble the Cake: Place one sponge on a cake stand, spread with a layer of buttercream and half of the jam. Repeat with the second sponge, then top with the final sponge and decorate with the remaining buttercream and fresh strawberries.

Recipe Tips

Use room temperature ingredients: Cold eggs or hard butter will cause your batter to curdle and bake unevenly in the oven.
Do not overmix: Stop beating the batter as soon as it looks smooth and uniform to keep the sponge light and airy.
Cool completely before frosting: Adding buttercream to warm cakes will melt the butter and cause your layers to slide right off the stand.
Check your baking powder: Expired raising agents are the primary reason sponges turn out flat or dense.

What To Serve With Celebration Cake

Serve generous slices of this sponge alongside a pot of freshly brewed Earl Grey tea or a dark roast coffee. If you prefer a richer dessert plate, offer a jug of warm vanilla custard or a large scoop of clotted cream on the side.

How To Store

Keep the frosted cake in an airtight container at room temperature for up to three days. You can also freeze the unfrosted sponge layers wrapped tightly in cling film for up to three months.

FAQs

Can I use plain flour instead of self-raising?

You can use plain flour, but you will need to add two level teaspoons of baking powder per 150g of plain flour to get the correct rise.

Why did my cake sink in the middle?

Opening the oven door too early lets cold air rush in. This halts the rising process and causes the unbaked center of the sponge to collapse.

Can I bake this as a two-layer cake?

Yes, just use two slightly deeper 20cm sandwich tins instead. You will need to increase the baking time to about 35 minutes to ensure the thicker layers cook through.

Nutrition

Calories: 580 kcal
Total Fat: 32g
Saturated Fat: 20g
Cholesterol: 120mg
Sodium: 350mg
Total Carbohydrate: 68g
Protein: 6g

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