Name: Mary Berry Toffee Cake Recipe
Prep time: 20 min
Cook time: 50 min
Total time: 1 h 10 min
Ingredients: 175g unsalted butter, softened; 150g light soft brown sugar; 2 tbsp golden syrup; 3 large eggs, at room temperature; 175g self-raising flour, sifted; 1 tsp baking powder; 1 tsp vanilla extract; 2 tbsp whole milk; 75g unsalted butter; 100g light soft brown sugar; 3 tbsp double cream; 1 tbsp golden syrup; small pinch of fine sea salt; 25g walnuts or pecans, roughly chopped (optional); flaked sea salt, for sprinkling

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This Mary Berry toffee cake is a warmly golden sponge with a deep caramel flavour, crowned with a thick, glossy toffee drizzle that sets to a slightly chewy finish as it cools. The crumb is soft and tender throughout, and the buttery sweetness carries a gentle bittersweet edge that keeps every slice from feeling overly rich.

What makes this version particularly reliable is the straightforward mixing method, which needs no specialist equipment and produces a consistent result every time. It bakes well in a standard loaf tin, making it equally suited to a weekend tea, a bake sale contribution, or a simple family treat. From start to finish, it is ready in around 1 hour 10 minutes.

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Ingredients

For the Sponge

175g unsalted butter, softened
150g light soft brown sugar
2 tbsp golden syrup
3 large eggs, at room temperature
175g self-raising flour, sifted
1 tsp baking powder
1 tsp vanilla extract
2 tbsp whole milk

For the Toffee Sauce

75g unsalted butter
100g light soft brown sugar
3 tbsp double cream
1 tbsp golden syrup
small pinch of fine sea salt

To Finish

25g walnuts or pecans, roughly chopped (optional)
flaked sea salt, for sprinkling

How to Make Mary Berry Toffee Cake

Prepare the tin and oven

Heat the oven to 170°C (150°C fan, Gas Mark 3). Grease a 900g (2lb) loaf tin and line it with a strip of non-stick baking paper, leaving a slight overhang on the long sides. This makes lifting the cooled cake much easier.

Cream the butter and sugar

Beat the softened butter and light brown sugar together in a large bowl for around 4 to 5 minutes until the mixture is noticeably pale and fluffy. Add the golden syrup and beat for one minute more. Thorough creaming here builds the airy structure that gives the sponge its tender crumb.

Add the eggs

Beat the eggs in one at a time, adding a tablespoon of the sifted flour with each egg after the first. This prevents the mixture from curdling. Stir in the vanilla extract once all the eggs are incorporated.

Fold in the flour

Sift the remaining flour and baking powder into the bowl. Using a large metal spoon or a spatula, fold the flour gently into the batter with a figure-of-eight motion until just combined. Add the milk and fold once more to loosen the batter to a soft dropping consistency.

Bake the sponge

Spoon the batter into the prepared tin and level the top with the back of the spoon. Bake on the middle shelf for 45 to 50 minutes, until the cake is a deep golden colour and a skewer inserted into the centre comes out clean. Leave to cool in the tin for 10 minutes before lifting onto a wire rack.

Make the toffee sauce

While the cake cools, put the butter, light brown sugar, golden syrup, and a pinch of salt into a small saucepan over a low heat. Stir gently until the butter melts and the sugar dissolves, taking care not to let it bubble too fiercely. Pour in the double cream, stir to combine, and simmer for 2 minutes until the sauce is glossy and just beginning to thicken.

Finish and serve

Transfer the cake to a serving board or plate while it is still slightly warm. Pour the toffee sauce slowly over the top, allowing it to run naturally down the sides. Scatter over the chopped walnuts or pecans if using, and finish with a pinch of flaked sea salt. Leave to stand for 5 minutes before slicing so the sauce can settle slightly.

Tips for the Best Mary Berry Toffee Cake

01 Why has my toffee cake sunk in the middle?

A sunken centre usually means the oven door was opened before the sponge had set, or the cake was underbaked. Always wait until at least the 40-minute mark before checking, and make sure the skewer comes out completely clean before removing the tin.

02 Why is my toffee sauce grainy rather than smooth?

Graininess happens when the sugar crystallises as it melts. Keep the heat low throughout and avoid stirring vigorously once the mixture starts to simmer. A calm, gentle stir at the beginning is all that is needed to bring the ingredients together.

03 How do I stop the top of the cake from overbrowning before the centre is baked through?

If the top is colouring too quickly after the first 30 minutes, lay a loose sheet of foil over the tin without pressing it down. This deflects direct heat from the surface while allowing the heat inside the oven to continue cooking the centre evenly.

04 Why does my sponge feel dense rather than light?

Over-mixing after the flour is added knocks the air out of the batter. Once the flour goes in, fold gently and stop as soon as the streaks disappear. Also check that the butter was fully softened before creaming, as cold butter will not hold enough air during the beating stage.

05 Why is my toffee sauce too thin even after it has cooled?

The sauce needs the full 2 minutes of simmering to reduce and thicken slightly. If it still seems runny, return it to a low heat for another minute, stirring gently. It will also firm up noticeably as it cools over the surface of the cake.

Serving Suggestions

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Serve warm with a small jug of double cream poured alongside, allowing each person to add as much as they like at the table.

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Add a scoop of good vanilla ice cream beside a warm slice for a simple dinner party dessert that looks far more effort than it is.

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Pair with a strong cup of Assam or Darjeeling tea for an afternoon tea serving, where the bitterness of the brew cuts the sweetness of the toffee.

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Dust lightly with icing sugar and serve at room temperature on a slate or wooden board for a rustic presentation at a bake sale or buffet table.

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Warm individual slices briefly in the microwave for 15 to 20 seconds and spoon a little extra heated toffee sauce over the top before serving.

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Storage

Up to 3 Days

Room Temperature

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

Up to 5 Days

Refrigerator

Wrap the cake tightly in cling film or place in an airtight container and refrigerate for up to 5 days. Bring to room temperature for at least 30 minutes before serving for the best soft texture, as the sponge firms slightly when chilled.

Up to 3 Months

Freezing

Freeze the un-iced sponge, wrapped in a double layer of cling film and then a layer of foil, for up to 3 months. Defrost overnight at room temperature and make the toffee sauce fresh before serving.

Nutrition

Calories

420

kcal per serving

52g

Carbohydrates

Protein

21g

Fat

13g

Saturated Fat

180mg

Sodium

Nutrition values are estimates only and will vary depending on the specific ingredients and quantities used, as well as individual serving sizes.

FAQs

Can I use salted butter instead of unsalted butter in this toffee cake?

Salted butter can be used in both the sponge and the sauce, but reduce or omit the additional sea salt in the sauce to avoid the final result tasting overly salty. The overall flavour will be very similar to the unsalted version.

Can I make this Mary Berry toffee cake a day ahead?

The sponge bakes well a day in advance and can be stored wrapped at room temperature overnight. Make the toffee sauce fresh on the day of serving, as it is at its glossiest and most pourable when freshly made. A brief reheat in the pan with a splash of cream will restore a day-old sauce perfectly.

Can I make this recipe gluten free?

A good quality gluten-free self-raising flour blend can be substituted in equal quantities. Add half a teaspoon of xanthan gum if the blend does not already include a binder, as this helps maintain the sponge structure. The texture may be marginally denser than the original.

What size tin works best for this toffee cake recipe?

A 900g (2lb) loaf tin gives a good height and a neat slice. A 20cm round tin also works, though the baking time will reduce to around 35 to 40 minutes, so check the cake earlier. Avoid a tin smaller than 900g as the batter will overfill and may spill.

Can I double this recipe to bake a larger toffee cake?

The recipe doubles well. Use two 900g loaf tins or one large 23cm round tin. Baking time will increase to around 55 to 65 minutes for two loaf tins side by side on the same shelf. Check both tins with a skewer before removing from the oven, as slight hot spots in the oven can mean one bakes a minute or two faster than the other.

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Conclusion

This Mary Berry toffee cake delivers everything a good home-baked treat should: a soft, golden sponge with a rich caramel depth, topped with a glossy toffee sauce that sets to a beautifully chewy finish. The mixing method is straightforward, the ingredients are everyday store-cupboard staples, and the result is consistent every time you bake it. Made in a 900g loaf tin, this recipe yields approximately 8 to 10 slices, making it a practical choice for a family pudding, an afternoon tea spread, or a thoughtful gift wrapped in parchment.

If you try this recipe, share your bake in the comments below and let others know how yours turned out. A photo of that toffee drizzle is always welcome. If you enjoyed making this, you might also like the Mary Berry Elderflower Cordial Recipe for a beautifully fragrant homemade drink to serve alongside your next bake.