Mary Berry Marble Cake Recipe

This classic marble cake is a soft, buttery sponge swirled with rich cocoa batter for that signature chocolate-vanilla ripple in every slice. The crumb is tender and moist, with a light vanilla aroma and a gentle chocolate finish that never overwhelms. It’s an easy, dependable bake that looks impressive without being fussy. Total time is about 1 hour 20 minutes including cooling, making it ideal for a relaxed afternoon bake.

Ingredients

For the marble sponge

• 225g unsalted butter, softened (plus extra for greasing)
• 225g caster sugar
• 4 large eggs
• 225g self-raising flour
• 2 tsp baking powder
• Pinch of fine salt
• 2 tbsp milk
• 1 tsp vanilla extract

For the chocolate swirl

• 2 tbsp unsweetened cocoa powder
• 2 tbsp just-boiled water (or milk)

To finish (optional)

• Icing sugar, for dusting

How to Make Mary Berry Marble Cake Recipe

• Prepare the oven: Preheat the oven to 180°C (160°C fan). Grease a 900g (2lb) loaf tin and line the base and long sides with baking parchment so you can lift the cake out easily.
• Cream butter and sugar: Beat the softened butter and caster sugar together until pale, fluffy, and lighter in colour. This takes about 2 to 3 minutes with an electric mixer.
• Add the eggs: Beat in the eggs one at a time, mixing well after each addition. If the mixture looks like it might split, add a spoonful of the flour and continue.
• Fold in the dry ingredients: Add the self-raising flour, baking powder, and salt. Fold gently until you no longer see streaks of flour.
• Loosen the batter: Stir in the milk and vanilla extract. The batter should be soft and spoonable, not stiff.
• Make the chocolate batter: Spoon about half the batter into a second bowl. In a small cup, mix the cocoa powder with the hot water to make a smooth paste, then beat or stir it into the reserved batter until evenly chocolatey.
• Create the marble effect: Drop alternating spoonfuls of vanilla and chocolate batter into the tin. Run a butter knife through the batter with a few gentle figure-eight swirls. Keep it light so the pattern stays distinct.
• Bake: Bake for 45 to 55 minutes, until the cake is risen, golden, and a skewer inserted into the centre comes out clean (a few moist crumbs are fine, but no wet batter).
• Cool properly: Leave the cake in the tin for 10 minutes, then lift out using the parchment and cool completely on a wire rack. This prevents a soggy bottom and keeps the crumb neat for slicing.
• Finish and slice: Dust with icing sugar if you like, then slice with a serrated knife for clean layers and a sharp marble pattern.

Tips

How do I get a clear marble swirl (not a muddled colour)?

Swirl less than you think you need to. Use a knife and make only a few gentle passes through the batter. If you stir too much, the two batters blend and you lose the definition.

Why did my loaf crack a lot on top?

A crack is normal for loaf cakes because the outside sets before the centre finishes rising. If it’s excessive, your oven may run hot. Next time, bake at 170°C (150°C fan) and extend the time slightly, or move the cake one shelf lower.

How can I stop the cake from sinking in the middle?

Make sure the cake is fully baked before you remove it. Also avoid over-beating once the flour is added, and don’t open the oven door in the first 35 minutes.

What’s the easiest way to keep the cake moist?

Don’t overbake it, and cool it on a rack so steam can escape. Once fully cool, store it airtight. Marble cake stays soft for days when it’s properly wrapped.

Serving Suggestions

• Serve with a cup of tea or coffee and a light dusting of icing sugar.
• Add fresh berries on the side for a simple, pretty plate.
• Spread with a thin layer of butter for a very traditional slice.
• Warm a slice for 10 seconds in the microwave and serve with vanilla ice cream.

Storage

Room temperature

Keep the cake in an airtight tin or well-wrapped at room temperature for up to 4 days. For the best texture, let chilled slices come back to room temperature before serving.

Refrigerator

You can refrigerate it for up to 6 days, but it will firm up more quickly. Wrap tightly to prevent it drying out and let slices sit out for 20 to 30 minutes before eating.

Freezing

Freeze the cooled cake (whole or sliced) for up to 3 months. Wrap in cling film, then foil, or use a freezer bag. Defrost overnight at room temperature while still wrapped so condensation forms on the wrapping, not the cake.

Nutrition

• Calories: 360 kcal
• Carbohydrates: 45 g
• Protein: 5 g
• Fat: 18 g
• Saturated Fat: 11 g
• Sodium: 220 mg

Disclaimer: Nutrition values are estimates and will vary depending on ingredients used and portion size.

FAQs