This soft, fluffy Mary Berry Birthday Cake Sponge is made with caster sugar, baking spread, and eggs, and ready in 40 minutes. Pulling the golden, well-risen sponges from the oven and smelling the sweet vanilla is incredibly satisfying. I always rely on this foolproof method for family celebrations.
Why This Classic Works
I used to overmix my cake batters, resulting in dense, heavy sponges that disappointed everyone. Switching to this reliable all-in-one method completely changed my baking routine. It is incredibly quick and reduces the margin for error.
The secret is using soft baking spread instead of hard butter straight from the fridge. It blends effortlessly with the flour and eggs, trapping air for that signature bounce.
Mary Berry Birthday Cake Sponge Ingredients
- 225g baking spread or softened butter
- 225g caster sugar
- 225g self-raising flour
- 2 tsp baking powder
- 4 large eggs
- 1 tsp vanilla extract
- 4 tbsp strawberry jam
- 150ml double cream, whipped

How To Make Mary Berry Birthday Cake Sponge
- Preheat and prep: Preheat the oven to 180°C (160°C fan). Grease and line two 20cm sandwich tins with baking paper.
- Mix the batter: Place the baking spread, sugar, flour, baking powder, eggs, and vanilla into a large bowl. Beat with an electric mixer until smooth.
- Divide the mixture: Divide the batter evenly between the two prepared tins. Level the surfaces gently with a spatula.
- Bake the sponges: Bake for 25 minutes until golden brown and springing back when touched.
- Cool and assemble: Leave in the tins for 5 minutes before turning out onto a wire rack. Once cold, spread jam on one sponge, top with whipped cream, and sandwich together.


Recipe Tips
- Use room temperature eggs: Cold eggs can cause the mixture to curdle and affect the rise.
- Check your baking powder: Expired leavening agents lead to flat sponges, so always ensure yours is fresh.
- Do not peek early: Opening the oven door before 20 minutes will cause the center of the cakes to collapse.
What To Serve With Birthday Cake Sponge
Serve this classic cake with a hot pot of English breakfast tea or a strong flat white. A side of fresh strawberries also cuts through the sweetness nicely.

How To Store
Keep the unfilled sponges wrapped in cling film at room temperature for up to three days. Once filled with cream, store the cake in the fridge and consume within two days. Unfilled sponges freeze beautifully for up to three months.
FAQs
Can I use plain flour instead?
Yes, but you must add 2 teaspoons of baking powder per 150g of plain flour to ensure it rises properly.
Why did my cake sink in the middle?
Sinking usually happens if the oven door is opened too early or the batter is overmixed.
Can I use buttercream instead of fresh cream?
Absolutely. A standard vanilla buttercream is a traditional alternative that keeps better at room temperature.
Nutrition
- Calories: 420 kcal
- Total Fat: 24g
- Saturated Fat: 14g
- Cholesterol: 125mg
- Sodium: 320mg
- Total Carbohydrate: 46g
- Protein: 5g
Try More Recipes:
- Mary Berry Best Victoria Sponge Cake Recipe
- Mary Berry Black Forest Cake Recipe
- Mary Berry Beetroot Cake Recipe
Mary Berry Birthday Cake Sponge
8
servings15
minutes25
minutes40
minutesMary Berry Birthday Cake Sponge yields soft, fluffy, light sponges using simple everyday baking ingredients in just 40 minutes. Try this reliable, classic all-in-one method for a fuss-free weekend treat that is incredibly simple for anyone to master.
Ingredients
225g baking spread or softened butter
225g caster sugar
225g self-raising flour
2 tsp baking powder
4 large eggs
1 tsp vanilla extract
4 tbsp strawberry jam
150ml double cream, whipped
Directions
- 1. Preheat and prep: Preheat the oven to 180°C (160°C fan). Grease and line two 20cm sandwich tins with baking paper.
- 2. Mix the batter: Place the baking spread, sugar, flour, baking powder, eggs, and vanilla into a large bowl. Beat with an electric mixer until smooth.
- 3. Divide the mixture: Divide the batter evenly between the two prepared tins. Level the surfaces gently with a spatula.
- 4. Bake the sponges: Bake for 25 minutes until golden brown and springing back when touched.
- 5. Cool and assemble: Leave in the tins for 5 minutes before turning out onto a wire rack. Once cold, spread jam on one sponge, top with whipped cream, and sandwich together.
