Name: Mary Berry Chocolate Chip Cake Recipe
Prep time: 20 min
Cook time: 35 min
Total time: 55 min
Ingredients: 175g unsalted butter, softened; 175g caster sugar; 3 large eggs; 175g self-raising flour, sifted; 1.5 tsp baking powder; 1 tsp vanilla extract; 2 tbsp whole milk; 100g dark chocolate chips; 100g unsalted butter, softened (for buttercream); 200g icing sugar, sifted (for buttercream); 1 tbsp whole milk (for buttercream); 0.5 tsp vanilla extract (for buttercream); 40g dark chocolate chips, finely chopped (for buttercream); 2 tbsp dark chocolate chips, for scattering; 1 tbsp icing sugar, for dusting (optional)

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This chocolate chip cake is a soft, golden vanilla sponge studded throughout with dark chocolate chips that hold their shape during baking and give a gentle melt with each bite. The crumb is tender and close, with a fine texture that cuts cleanly and holds up well whether served warm or at room temperature.

What makes this version reliable is the simplicity of the method. Everything comes together in one bowl using the all-in-one approach, which means fewer stages and a much shorter window for error. It suits an afternoon tea, a birthday, or a casual weekend bake equally well. From start to finish, it is ready in around 55 minutes.

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Ingredients

For the Sponge

175g unsalted butter, softened
175g caster sugar
3 large eggs
175g self-raising flour, sifted
1½ tsp baking powder
1 tsp vanilla extract
2 tbsp whole milk
100g dark chocolate chips

For the Buttercream

100g unsalted butter, softened
200g icing sugar, sifted
1 tbsp whole milk
½ tsp vanilla extract
40g dark chocolate chips, finely chopped

To Finish

2 tbsp dark chocolate chips, for scattering
1 tbsp icing sugar, for dusting (optional)

How to Make Mary Berry Chocolate Chip Cake

Prepare the tin

Grease and line a deep 20cm round cake tin with baking parchment, then preheat the oven to 180°C (160°C fan, gas mark 4). Placing the tin on the middle shelf ensures even heat circulation around the cake.

Mix the batter

Place the softened butter, caster sugar, eggs, sifted self-raising flour, baking powder, vanilla extract, and milk into a large mixing bowl. Beat together with an electric hand whisk for approximately 2 minutes until the mixture is pale, smooth, and slightly increased in volume. Avoid overbeating once the flour is fully incorporated, as this can tighten the gluten and produce a denser crumb.

Fold in the chocolate chips

Tip the dark chocolate chips into the batter and fold them through gently using a large metal spoon, turning the mixture from the bottom of the bowl with each stroke. Reserve a small handful to press onto the surface before baking, as this creates a visible layer of chips on top that set into the crust.

Fill the tin and bake

Spoon the batter into the prepared tin and level the surface with a palette knife or the back of a spoon. Scatter the reserved chocolate chips across the top. Bake for 30 to 35 minutes until the sponge is well-risen, golden, and a skewer inserted into the centre comes out clean.

Cool the sponge

Leave the cake to cool in the tin for 10 minutes before turning out onto a wire rack. Allow it to cool completely before applying any buttercream, as residual heat will melt the frosting and cause it to slide off the surface rather than hold its shape.

Make the buttercream

Beat the softened butter in a clean bowl until it becomes very pale and fluffy, which takes around 3 to 4 minutes with an electric whisk. Add the sifted icing sugar in two stages, beating well between each addition. Add the milk and vanilla extract, then beat again until the buttercream is silky and light. Stir through the finely chopped chocolate chips by hand.

Finish and decorate

Spread the vanilla and chocolate chip buttercream generously across the top of the cooled sponge using a palette knife, creating a slightly textured surface rather than a perfectly flat finish. Scatter the remaining dark chocolate chips over the top. Dust lightly with icing sugar if desired just before serving.

Tips for the Best Mary Berry Chocolate Chip Cake

01 Why did my chocolate chip cake sink in the middle after baking? +−

A sunken centre is almost always caused by the oven door being opened before the sponge has set, or the oven temperature being too high initially which causes a rapid rise that the structure cannot sustain. Check the cake through the glass if possible and wait until at least 25 minutes have passed before opening the door.

02 Why do all my chocolate chips sink to the bottom of the cake? +−

Chips sink when the batter is too loose to hold them in suspension. Toss the chocolate chips in a teaspoon of the measured flour before folding them in, as this light coating creates friction against the surrounding batter and helps distribute them evenly through the sponge during baking.

03 Why is my sponge dense and heavy rather than light? +−

A heavy crumb usually comes from cold butter that has not been beaten long enough before the eggs are added, or from overworking the batter once the flour goes in. Make sure the butter is genuinely soft before you start, and stop mixing as soon as the batter looks smooth and well combined.

04 How do I stop the top of my cake from cracking unevenly? +−

Uneven cracking usually comes from the oven temperature being slightly too high or the batter being mounded in the centre of the tin. Level the surface carefully with a palette knife before baking and make a very shallow dip in the middle of the batter, which allows the centre to catch up with the edges as it rises.

05 Why does my buttercream look greasy or split rather than smooth? +−

Buttercream splits when the butter is either too cold and firm, or too warm and oily. If the mixture looks curdled, try beating it vigorously for another 2 minutes, as the friction of mixing often brings it back together. If it remains greasy, place the bowl in the fridge for 10 minutes and then beat again.

Serving Suggestions

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Serve at room temperature with a pot of strong Assam tea for a classic afternoon spread.

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Cut into generous slices and accompany with a small glass of cold milk for a satisfying after-school treat.

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Warm a slice slightly and add a scoop of good vanilla ice cream alongside for a relaxed dinner party dessert.

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Plate individual slices on a cake stand with a light dusting of icing sugar for a simple but tidy presentation at gatherings.

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Pair with a drizzle of slightly cooled dark chocolate sauce poured at the table for a more indulgent occasion.

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Storage

Up to 3 Days

Room Temperature

Store in an airtight container at room temperature for up to 3 days, keeping the tin away from direct sunlight or heat sources.

Up to 5 Days

Refrigerator

Place the cake in an airtight container and refrigerate for up to 5 days. Remove it from the fridge at least 30 minutes before serving so the sponge can return to a soft, pliable texture rather than tasting cold and firm.

Up to 3 Months

Freezing

Wrap the unfrosted sponge tightly in a double layer of cling film, then in foil, and freeze for up to 3 months. Defrost overnight at room temperature before applying the buttercream.

Nutrition

Calories

420

kcal per serving

48g

Carbohydrates

Protein

22g

Fat

13g

Saturated Fat

120mg

Sodium

Nutrition values are estimates based on standard ingredient quantities and may vary depending on the specific brands and serving sizes used.

FAQs

01 Can I use milk chocolate chips instead of dark chocolate chips? +−

Yes, milk chocolate chips work well here and produce a sweeter, creamier result throughout the sponge. White chocolate chips are another option, though the flavour contrast with the vanilla sponge is subtler, so consider using slightly less caster sugar in the batter to balance the overall sweetness.

02 Can I make this chocolate chip cake ahead of time? +−

The sponge can be baked up to two days in advance and stored unfrosted in an airtight container at room temperature. Make and apply the buttercream on the day of serving for the freshest finish. This also works well if you are baking for a party and want to spread the preparation across two days.

03 What size tin works best for this chocolate chip cake recipe? +−

A deep 20cm round tin gives the best result for this quantity of batter, producing a sponge with enough height to cut cleanly and hold the buttercream on top. A 18cm tin will produce a slightly taller, denser cake, and will need a few additional minutes in the oven. Avoid a tin larger than 22cm as the sponge will spread too thin and overbake quickly.

04 Can I double the recipe to make a two-layer celebration cake? +−

Yes, doubling the batter and dividing it equally between two lined 20cm tins works very well. Each tin will take around 25 to 28 minutes at the same temperature. Sandwich the two cooled layers with half the buttercream and spread the remainder on top, then scatter with chocolate chips as normal.

05 Can I make this cake without an electric whisk? +−

It can be done by hand using a wooden spoon, provided the butter is very soft before you start. Beat the butter and sugar together thoroughly until the mixture is pale and slightly fluffy before adding the eggs and flour, as this is where most of the air is incorporated. Expect the mixing process to take closer to 5 minutes by hand compared to 2 minutes with a whisk.

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Conclusion

This Mary Berry chocolate chip cake recipe delivers a reliably tender sponge with an even crumb, a gentle vanilla base, and pockets of melted dark chocolate in every slice. The all-in-one mixing method keeps preparation straightforward and reduces the chance of overworking the batter, making this a practical bake for both first-timers and more confident home cooks. The recipe yields approximately 10 slices, making it well-suited to a family gathering or a casual afternoon tea with friends.

Once mastered, the basic structure of this cake lends itself to small variations, such as switching the chocolate chip variety or adjusting the depth of the buttercream, without changing the fundamental approach. If you try this recipe, leave a comment below to share how it turned out, and feel free to pass it along to anyone who might enjoy it. If you are looking for something equally simple and refreshing to try next, you might also enjoy the Mary Berry lemonade recipe, which is just as straightforward and wonderfully bright for warmer days.