This Mary Berry chocolate chip loaf cake is a tender, golden-crumbed sponge studded throughout with dark chocolate chips that soften into rich, melting pockets as the cake bakes. The crumb is moist and close-textured, with a lightly crisp top crust and a warm, buttery scent that fills the kitchen as it cooks. It slices cleanly and holds its shape beautifully on the plate.

What makes this loaf cake so reliable is the straightforward method. No complicated techniques, no specialist equipment, and no temperamental timing. It works equally well as a midweek treat, a weekend bake, or a slice to pack into a lunchbox. From start to finish, it is ready in around 1 hour 15 minutes.

Ingredients

For the loaf cake

175g unsalted butter, softened
175g caster sugar
3 large eggs, at room temperature
175g self-raising flour, sifted
1 tsp baking powder
2 tbsp whole milk
1 tsp vanilla extract
150g dark chocolate chips

To finish

1 tbsp demerara sugar, for sprinkling
25g dark chocolate chips, for the top

How to Make Mary Berry Chocolate Chip Loaf Cake

Prepare the tin: Heat the oven to 180°C (160°C fan, Gas Mark 4). Grease a 900g (2lb) loaf tin generously with butter, then line it with a strip of baking parchment that overhangs the two long sides, this makes it much easier to lift the finished cake out cleanly.
Cream the butter and sugar: Beat the softened butter and caster sugar together in a large mixing bowl for 3 to 4 minutes until the mixture is very pale, noticeably fluffy, and almost doubled in volume. Proper creaming at this stage gives the cake its light, tender crumb.
Add the eggs: Beat the eggs together in a small jug, then add them to the creamed butter and sugar a little at a time, beating well after each addition. If the mixture begins to look curdled or slippery, add a tablespoon of the measured flour and beat again to bring it back together.
Fold in the flour: Sift the self-raising flour and baking powder over the mixture. Using a large metal spoon, fold everything together with slow, sweeping strokes from the bottom of the bowl. Stop folding as soon as the flour disappears, overworking at this point develops too much gluten and tightens the crumb.
Add the milk and vanilla: Stir in the vanilla extract and the whole milk to loosen the batter slightly. The mixture should drop reluctantly from the spoon, not pour, and not cling stiffly. Adjust with a few extra drops of milk if the batter looks too thick.
Fold in the chocolate chips: Reserve the 25g of chocolate chips for the top, then fold the remaining 150g through the batter in two additions. Distribute them evenly so every slice gets a good share of chocolate pockets.
Fill the tin and top: Spoon the batter into the prepared loaf tin and spread it level with the back of the spoon. Scatter the reserved chocolate chips across the surface, then sprinkle over the demerara sugar for a light, sandy crust that catches colour as the cake bakes.
Bake the loaf cake: Place the tin on the middle shelf of the preheated oven and bake for 50 to 55 minutes. The cake is ready when it is deep golden on top, has pulled slightly away from the sides of the tin, and a thin skewer inserted into the centre comes out clean, with no wet batter on it.
Cool before slicing: Leave the cake in the tin for 10 minutes before using the parchment to lift it onto a wire rack. Allow it to cool for a further 20 minutes before slicing, cutting into a warm loaf cake too soon causes the crumb to press together and lose its open texture.

Tips for the Best Mary Berry Chocolate Chip Loaf Cake

Why are my chocolate chips sinking to the bottom of the cake?

Toss the chocolate chips in a teaspoon of the measured flour before folding them into the batter. The light coating creates a little grip and helps suspend them more evenly through the crumb during baking.

Why has my loaf cake developed a large crack down the centre?

A central crack on a loaf cake is completely normal and actually desirable. It forms because the outer edges set before the middle has finished rising. If the crack is very deep and the edges look burnt, the oven temperature is too high, so check it with an oven thermometer.

How do I stop the top of the loaf from browning too quickly?

If the top is colouring fast before the centre has had time to cook through, lay a loose sheet of foil over the tin after the first 35 minutes. Do not press it down, just rest it lightly so the heat can still circulate underneath.

Why does my loaf cake feel dense and heavy rather than light and springy?

This usually happens when the butter and sugar are not creamed for long enough, or when the eggs are added too quickly and the mixture splits. Take your time with both stages. Also make sure the butter is genuinely soft before you begin, not cold from the fridge and not melted.

Why is there a raw, gummy strip running through the middle of the sliced cake?

The cake has been taken out of the oven before it has fully baked. Always test with a skewer in the deepest part of the centre before removing it. If it comes out with wet batter, give it another 5 minutes and test again.

Serving Suggestions

Serve slices at room temperature alongside a pot of strong builders tea for an afternoon break that needs no further decoration.
Warm individual slices for 15 seconds in the microwave and add a small spoonful of clotted cream on the side for a more indulgent plate.
Dust the top lightly with icing sugar before serving at a tea party for a clean, unfussy finish.
Pair with a scoop of vanilla ice cream and a drizzle of warm caramel sauce for a simple pudding that works well after a roast dinner.
Cut into thick fingers and serve wrapped in parchment for a packed lunch or school bake sale, the loaf format makes portioning neat and tidy.

Storage

Room Temperature

Wrap the cooled loaf cake in cling film or store in an airtight container at room temperature for up to 4 days.

Refrigerator

The cake can be kept in a sealed container in the fridge for up to 6 days. Bring it back to room temperature for at least 30 minutes before eating, as refrigeration firms the crumb and dulls the flavour slightly.

Freezing

Wrap the fully cooled loaf tightly in cling film, then in a layer of foil, and freeze for up to 3 months. Defrost overnight at room temperature, still in its wrapping, to prevent condensation from making the surface sticky.

Nutrition

Calories: 385 kcal
Carbohydrates: 44g
Protein: 5g
Fat: 21g
Saturated Fat: 12g
Sodium: 180mg

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

FAQs

Can I use milk chocolate chips instead of dark chocolate chips?

Yes, milk chocolate chips work well and give the finished cake a noticeably sweeter flavour. White chocolate chips are also a good option if you prefer a milder, creamier taste. Using a mix of two types is perfectly fine too.

Can I make this chocolate chip loaf cake in a different sized tin?

A 900g (2lb) loaf tin is the best fit for this quantity of batter. A smaller 450g (1lb) tin will overflow, and a round 18cm tin will produce a slightly flatter, wider cake with a shorter baking time of around 35 to 40 minutes. Check earlier if you switch tins.

Can I make this loaf cake ahead of time?

This cake actually improves after a day, once the crumb has had time to settle and the chocolate chips firm back up. Bake it the day before you need it and store it wrapped at room temperature overnight for the best results.

Can I add cocoa powder to make a double chocolate version?

Replace 25g of the self-raising flour with 25g of good quality cocoa powder, sifted together with the remaining flour. This gives the sponge a light chocolate flavour and a darker colour, while the chocolate chips still provide bursts of richer taste throughout.

Is this chocolate chip loaf cake suitable for children?

Yes, it is a very suitable bake for children to enjoy and for younger children to help make. The quantities are easy to weigh, the method is straightforward, and there are no steps that carry significant risk. Use milk chocolate chips rather than dark if making it for younger children who find dark chocolate bitter.

Conclusion

This Mary Berry chocolate chip loaf cake is a solid, reliable bake that delivers a moist, golden sponge with well-distributed chocolate through every slice. The ingredients are simple pantry staples, the method is clear and beginner-friendly, and the result is a loaf that looks as good as it tastes. This recipe yields 8 to 10 generous slices, making it ideal for sharing with family or serving across a couple of days.

Whether this is the first loaf cake you have ever made or simply a go-to recipe you want to keep coming back to, the steps above give everything needed for a reliable bake every time. If this recipe worked well for you, leave a comment below to share how it turned out, and feel free to pass it on to anyone who might enjoy it. If you enjoyed this, you might also like the Mary Berry Mincemeat Cake Recipe for another classic, flavour-packed loaf bake.