Coffee and Walnut Cake Recipe: A British Classic
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Walk into almost any British tearoom, village fete or supermarket bakery aisle and you will find it: two soft coffee sponges sandwiched with coffee buttercream and crowned with walnut halves. This coffee and walnut cake recipe follows that classic formula, with clear US and metric measures, a trick for stronger coffee flavor, and a dairy-free version.
One quick clarification before we bake. This is not American “coffee cake,” which is a crumb-topped cake meant to be eaten with coffee and usually contains none. The British version is flavored with coffee through and through.
In this article
- A short history
- Coffee and walnut cake recipe
- Method
- Which coffee gives the best flavor?
- Troubleshooting
- Variations, dairy-free and lighter options
- FAQ
A short history
Nobody knows exactly who first paired coffee and walnuts in a sponge. The cake is built on the same equal-weights base as the Victoria sponge: butter, sugar, eggs and flour in matching amounts. One commonly cited clue to its spread is a 1934 advertisement by the British flour brand McDougall’s that presented it as a “new recipe.” Since then it has become a fixture of British baking, sold in tearooms and bake sales and beloved by food writers. Nigel Slater once wrote in The Guardian that it would be his choice for a final meal.
If you want the story of the American crumb cake instead, see our coffee cake history.
Coffee and walnut cake recipe
Makes one 8-inch (20 cm) two-layer cake, about 10–12 slices. Prep 25 minutes, bake 20–25 minutes, plus cooling.
For the sponge
| Ingredient | US | Metric |
|---|---|---|
| Unsalted butter, very soft | 1 cup (2 sticks) | 225 g |
| Superfine (caster) sugar | 1 cup + 2 tbsp | 225 g |
| Large eggs, room temperature | 4 | 4 |
| Self-rising flour | 1 3/4 cups | 225 g |
| Baking powder | 1 tsp | 4 g |
| Instant coffee or espresso powder | 2 tbsp | about 6 g |
| Hot water (to dissolve the coffee) | 2 tbsp | 30 ml |
| Walnuts, chopped | 2/3 cup | 75 g |
No self-rising flour? Use the same weight of all-purpose flour plus 3 tsp baking powder in total and 1/4 tsp salt.
For the coffee buttercream and topping
| Ingredient | US | Metric |
|---|---|---|
| Unsalted butter, soft | 2/3 cup | 150 g |
| Powdered (icing) sugar, sifted | 2 1/2 cups | 300 g |
| Instant coffee or espresso powder | 1 1/2 tbsp | about 4–5 g |
| Hot water | 1 tbsp | 15 ml |
| Walnut halves, to decorate | 10–12 | 10–12 |
Method
- Prepare. Heat the oven to 350 °F (180 °C, or 160 °C fan). Grease two 8-inch (20 cm) round cake pans and line the bases with parchment.
- Toast the walnuts. Spread the chopped walnuts and the halves on a tray and toast for 5–6 minutes until fragrant. Cool. This step makes a big difference in flavor.
- Make the coffee. Dissolve 2 tbsp instant coffee in 2 tbsp hot water for the sponge, and 1 1/2 tbsp in 1 tbsp hot water for the icing. Let both cool.
- Cream. Beat the butter and sugar for 3–4 minutes until pale and fluffy.
- Add eggs. Beat in the eggs one at a time, adding a spoonful of the flour with the last two to prevent curdling.
- Fold. Sift in the remaining flour and baking powder. Fold gently, then fold in the sponge coffee and the chopped walnuts.
- Bake. Divide evenly between the pans (weigh them for even layers). Bake 20–25 minutes, until risen, golden and springy, and a skewer comes out clean.
- Cool. Leave in the pans for 5 minutes, then turn out onto a rack and cool completely.
- Make the buttercream. Beat the butter until very soft, add the powdered sugar gradually, then the icing coffee. Beat 2–3 minutes until light.
- Assemble. Spread just under half the buttercream on one sponge, top with the second, spread the rest on top and finish with walnut halves.
Tips
- Everything at room temperature gives a smoother batter and a better rise.
- The cake keeps 3–4 days in an airtight tin in a cool place; refrigerate in hot weather and bring back to room temperature to serve.
- Unfrosted sponges freeze well for up to a month, wrapped tightly.
Which coffee gives the best flavor?
| Coffee option | Flavor in the cake | How to use |
|---|---|---|
| Instant coffee | Classic, clear coffee taste; the traditional choice | Dissolve in a little hot water as above |
| Espresso powder | Most intense for the least liquid | Use the same amounts as instant |
| Freshly brewed espresso | Rounder, more aromatic | Replace the coffee and water with 3 tbsp (45 ml) cooled espresso in the sponge and 1 1/2 tbsp in the icing |
| Regular drip coffee | Too weak; adds liquid without flavor | Not recommended |
Our espresso powder guide explains how to make your own for baking. For the traditional route, our Instant Coffee dissolves easily and keeps in a resealable pouch, so a spoonful is always ready for baking. If you prefer brewed espresso, a dark roast such as our Italian Roast gives the strongest coffee note in the buttercream. And to serve alongside, a pot of English Breakfast tea or a cup of fresh coffee keeps it properly British.
Troubleshooting
| Problem | Likely cause | Fix next time |
|---|---|---|
| Cake sank in the middle | Oven opened too early or underbaked | Wait 18 minutes before checking; test with a skewer |
| Coffee flavor too faint | Weak coffee or too much liquid | Use instant or espresso powder, not brewed filter coffee |
| Batter curdled | Cold eggs or added too fast | Room-temperature eggs, one at a time, with a spoon of flour |
| Buttercream grainy or runny | Butter too cold or too warm | Soft but not melted butter; chill 10 minutes if runny |
| Walnuts taste bitter | Old nuts or over-toasted | Taste before using; toast just until fragrant |
Variations, dairy-free and lighter options
- Dairy-free: use a plant-based baking block in both the sponge and the buttercream. Avoid soft tub spreads, which make icing runny.
- Lighter: skip the filling layer and use a simple coffee glaze on top made from 150 g (1 1/4 cups) powdered sugar and 1–2 tbsp strong coffee.
- Traybake: bake in a 9 x 13-inch (23 x 33 cm) pan for 25–30 minutes and frost the top only.
- Cupcakes: makes about 16; bake 18–20 minutes.
- Nut-free: leave out the walnuts and top with chocolate-covered coffee beans instead.
Coffee and walnut cake FAQ
Can I use ground coffee in the cake?
Not directly. Ground coffee stays gritty. Brew it as strong espresso first, or use instant or espresso powder.
Does coffee and walnut cake contain caffeine?
Yes, a small amount from the coffee. Use decaf instant or decaf espresso if serving to children or late in the day.
Can I make it a day ahead?
Yes. The flavor often improves overnight. Store covered at cool room temperature.
Why do some recipes use muscovado or brown sugar?
Brown sugar adds a caramel note that suits coffee. Swap up to half the caster sugar for light brown sugar if you like.
Sources
- Coffee and walnut cake, Wikipedia, accessed 2026.
- Coffee and walnut cake, National Trust, accessed 2026.
Facts checked in October 2026.
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