Short answer
A chocolate Swiss roll is a thin, flexible cocoa sponge baked in a shallow tin, rolled while still warm and then filled with cream or ganache. Rolling it early, with a cloth or baking paper inside, is what stops the sponge from cracking.
A chocolate Swiss roll is a very thin cocoa sponge that is baked quickly, rolled up while still warm and later unrolled, filled with cream and rolled again. The warm roll trains the sponge into a curl, so it bends later without cracking. Fillings range from whipped cream and chocolate buttercream to ganache and jam.
What is a chocolate Swiss roll?
A chocolate Swiss roll is a rolled sponge cake with a spiral of filling, made with a cocoa-flavoured whisked sponge. Also called a chocolate roll, a chocolate roulade or in the United States a jelly roll with chocolate cake, it is eaten in many countries.
The cake is made from eggs, sugar, flour and cocoa. Whisked eggs provide most of the structure, so the sponge stays thin and pliable. Asian bakeries often make their own version, with a lighter, more springy sponge and whipped cream, and Swiss rolls are among the cakes that Google reviewers mention at Uncle Cake in Birmingham.
How is the sponge for a Swiss roll made?
The sponge is made by whisking whole eggs and sugar until pale, thick and tripled in volume, then folding in flour and cocoa. It is spread thinly in a lined shallow tin and baked for only 8 to 12 minutes.
Typical proportions for a 33 x 23 cm tin are 4 eggs, 100 g caster sugar, 70 g plain flour and 20 g cocoa powder. The mixture has no butter or oil, which is why it is so flexible. A whisked-egg sponge is called a genoise-style or fatless sponge.
Why does a Swiss roll crack, and how do you stop it?
A Swiss roll cracks because the sponge dried out, was overbaked, or was rolled cold. The sponge must be rolled while it is warm and still holds steam.
- Bake only until the top springs back, usually 10 minutes. A minute too long dries the edges.
- Turn the sponge onto a sheet of baking paper dusted with caster sugar as soon as it leaves the oven.
- Peel off the lining paper, trim the crisp edges and roll the sponge up with the paper inside.
- Let the roll cool completely in that shape.
- Score a shallow line 2 cm from the short edge before rolling, to start the curl.
If the sponge still cracks a little, a coat of cream or ganache hides the splits well.
How do you roll and fill a chocolate Swiss roll?
Roll the warm sponge in baking paper, cool it, unroll it, spread the filling and roll it up again, this time without the paper. A firm first turn gives a tight, even spiral.
- Spread the unrolled, cooled sponge with filling, leaving a 1 cm border.
- Lift the paper edge nearest to you and fold the sponge over the filling to make the first tight turn.
- Keep rolling, using the paper to push, until the seam sits underneath.
- Wrap the roll in paper or cling film and chill for 30 minutes to set the shape.
A thin layer of filling rolls neatly. A thick layer squeezes out of the ends and makes the roll harder to slice.
What fillings go with a chocolate Swiss roll?
Whipped cream, ganache, chocolate buttercream and jam are the most common fillings. Each gives a different texture, as the table shows.
| Filling | Texture | Keeps for |
|---|---|---|
| Whipped cream | Light and soft | About 2 days in the fridge |
| Chocolate ganache | Rich, firm when chilled | About 3 days in the fridge |
| Chocolate buttercream | Sweet and dense | About 3 days, cool room |
| Raspberry or cherry jam | Fruity and thin | About 4 days |
| Cream cheese and berries | Tangy, creamy | About 2 days in the fridge |
Whipped cream with a spoonful of icing sugar is the lightest choice, and it suits the thin sponge well.
How do you slice a Swiss roll neatly?
Slice a Swiss roll with a long, sharp knife after chilling it for at least 30 minutes. Wipe the blade clean between cuts and trim the ends first, because the ends are often uneven.
Cut with a gentle sawing motion rather than pressing down, and use the tip of the knife to start each cut. For a decorative finish, dust with icing sugar or cocoa, or pour a little ganache over the top and drag a fork through it to give a bark-like surface.
How is a Swiss roll different from a log cake or roulade?
A Swiss roll, a roulade and a yule log all start from the same rolled sponge. The difference lies in the finish and the name used.
- Swiss roll: a plain spiral, often with jam or cream, served in slices.
- Roulade: the French term, often a filled roll of sponge or meringue, sometimes without flour.
- Yule log: a chocolate roll covered in chocolate cream and marked to look like bark.
- Japanese roll cake: a very soft chiffon-style roll, often with fresh cream.
What chocolate and cocoa should you use for the sponge?
Use unsweetened cocoa powder for the sponge, because it mixes evenly with flour and gives a deep colour without adding fat. Melted chocolate makes the sponge heavier and harder to roll.
Dutch-process cocoa is darker and milder, and natural cocoa is a little sharper and lighter in colour. Either works in a whisked sponge. Sift the cocoa and flour together twice so that no lumps remain, because lumps leave dry specks in a thin cake. For the filling, dark chocolate ganache needs a chocolate with about 50 to 70 percent cocoa solids, which sets firm but still slices cleanly.
How do you decorate a chocolate Swiss roll?
A chocolate Swiss roll can be left plain, dusted, glazed or coated, and the finish changes how it looks on a table.
- Dust with icing sugar through a sieve for a light, classic look.
- Pour a thin layer of ganache over the roll and drag a fork along it to make a bark pattern.
- Press chocolate shavings or crushed biscuits onto a cream-coated roll.
- Pipe small rosettes of whipped cream down the top and add a berry to each.
- Trim the ends at an angle for a neat cut face before serving.
Chill the roll for 20 minutes after glazing so the ganache firms before slicing.
Does Uncle Cake sell Swiss rolls?
Reviewers on Google mention Swiss rolls at Uncle Cake in the Arcadian Centre, Birmingham, according to the public listing details recorded for this guide. The flavours are not stated in those details, so a chocolate version cannot be confirmed.
The shop publishes no price list, as of November 2026. Check the menu page for what is recorded and the hours and location page for times. This guide is independent and takes no orders, so the shop is best asked directly by phone or Instagram message about flavours.
Common questions
Why is it called a Swiss roll?
Nobody is certain. The cake is not clearly Swiss, and similar rolled sponges appear across central Europe. The name is used mainly in Britain and Commonwealth countries, while the United States says jelly roll.
Is a Swiss roll the same as a roulade?
A roulade is the French word for any rolled dish. A Swiss roll is a rolled sponge cake, so it is one kind of roulade. Meat and savoury roulades exist too, so the word is wider.
Can I make a Swiss roll without flour?
Yes. A flourless chocolate roulade uses whisked eggs, sugar and cocoa, and is soft and fudgy. It is more fragile than a flour sponge, so it needs a careful roll and a cream filling.
How long does a chocolate Swiss roll keep?
A roll filled with fresh cream keeps for about two days in the fridge. A roll with jam or buttercream keeps for around three days in an airtight container at cool room temperature.
Can I freeze a Swiss roll?
Yes. Wrap the filled roll in cling film, then foil, and freeze for up to a month. Thaw it in the fridge for a few hours before slicing, which also makes cutting cleaner.
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This article is general information from an independent guide, not from Uncle Cake itself. For the store’s current details see hours and location.