Muffin vs Cupcake: What's the Difference? A UK Guide
Muffin vs cupcake: a muffin is a quick bread, usually less sweet, often made with oil or melted butter and stirred together briefly, giving a coarse, domed bake. A cupcake is a small cake made like a sponge, with a finer, softer crumb, and it's usually iced. In the UK, a cupcake's closest cousin is the fairy cake.
At a glance
- Methodmuffins are stirred briefly; cupcakes start by creaming butter and sugar
- Icingcupcakes are usually iced; muffins rarely are
- 1796first known recipe for "a light cake to bake in small cups"
- 2 kindsof muffin in the UK: American-style and the yeasted English muffin
On this page
They're the same size, they're baked in the same tin and they sit side by side in every café cabinet. So is there really a difference between muffin and cupcake batter, or is a cupcake just a muffin with icing on top? There is a difference, and once you know it you'll spot it straight away: it's mostly about how the batter is mixed, how sweet and rich it is, and what goes on top.
Muffin vs cupcake: what's the difference?
Here's how the two usually compare. Recipes vary a lot, so think of this as the typical version of each rather than a strict rule:
| Muffin | Cupcake | |
|---|---|---|
| What it is | Quick bread | Small cake |
| Fat | Oil or melted butter | Softened butter |
| Mixing | Stirred briefly | Creamed, then mixed |
| Sweetness | Light to medium | Sweeter |
| Crumb | Coarse, moist | Fine, soft, even |
| Top | Domed, crusty | Flatter, iced |
| Fillings | Fruit, nuts, bran, cheese | Usually plain sponge |
Typical differences, based on Wikipedia's Muffin and Cupcake entries, King Arthur Baking and Gisslen's Professional Baking. Plenty of recipes blur the lines, which is why the cupcake vs muffin question comes up so often.
The simplest test is the one Wikipedia gives: muffins and cupcakes are similar in size and cooking method, but cupcakes are intended to be sweet desserts and are often topped with icing. Muffins can be sweet or savoury, and they're as likely to turn up at breakfast as at teatime.
That said, the line isn't sharp. Gisslen's baking textbook points out that there's no exact dividing line between muffins and cakes, and a muffin that's rich enough could fairly be called a cake. The big coffee-shop muffins with chocolate chunks and a sugary top are a good example. They're much closer to a cupcake without icing than to the plainer muffins of a century ago.
What is a muffin?
In the UK, "muffin" can mean two quite different things, which is part of the confusion.
The American-style muffin
This is the one in the cupcake debate. It's a quick bread, meaning it rises with baking powder or bicarbonate of soda rather than yeast, baked in individual cups. Wikipedia notes that the quick-bread muffin originated in North America in the 19th century, and in Britain it's sometimes called an "American muffin" to tell it apart from the older kind. It has a "moist, coarse-grained" texture and often has fruit, chocolate chips, nuts or bran stirred through the batter.
Sweetness varies widely. Some muffins are only lightly sweet, and savoury ones, such as cheese or cornbread muffins, aren't sweet at all. Our own keto egg muffins stretch the name even further: they're baked in a muffin tin but contain no flour. At the other end, the Encyclopedia of Food Grains, quoted by Wikipedia, describes some muffins as "richer than many cakes in fat and sugar".
The English muffin
An English muffin is a different thing altogether: a small, round, flat bread made with yeast, cooked on a griddle and flipped, then split and toasted. It isn't sweet, and it's what you'd use for eggs Benedict. In British shops you'll often see these sold simply as "muffins" or "breakfast muffins". Recipes for them appear in Hannah Glasse's The Art of Cookery from 1747, long before the American version came along.
If a UK recipe says "muffins" and mentions yeast, a griddle or toasting, it means English muffins. If it uses baking powder and a muffin tin, it means American-style muffins.
What is a cupcake?
A cupcake is simply a small cake made for one person, baked in a paper or foil case. According to Wikipedia, the earliest known description is from 1796, when Amelia Simmons's American Cookery included "a light cake to bake in small cups". The word cupcake itself first appears in print in Eliza Leslie's recipe book in 1828.
The name originally came from the cups the cakes were baked in. Before muffin tins were common, small cakes were baked in pottery cups, ramekins or moulds. Today, cupcakes are made from the same basic ingredients as a full-sized cake (butter, sugar, eggs and flour), and almost any layer-cake recipe can be baked as cupcakes. Because they're small, they bake much faster than a whole cake.
The other defining feature is the topping. Cupcakes are usually finished with buttercream, icing or frosting, and often decorations on top of that. Many are also filled with jam, cream or more frosting.
Cupcakes vs fairy cakes: the UK names
So what are cupcakes called in the UK? These days, mostly cupcakes. But the traditional British version is the fairy cake, and Wikipedia lists fairy cake as the British English name, with "patty cake" in Australia and "bun" in Ireland.
There is a small difference in style. Fairy cakes vary in size more than American cupcakes, but they're traditionally smaller and rarely topped with elaborate frosting. Think of a light sponge in a thin paper case with a thin layer of glacé icing or a dot of buttercream. The big swirl of frosting is more of an American cupcake thing.
- Fairy cake: small, light sponge, simple icing.
- Butterfly cake: a fairy cake with the top sliced off, cut in half and set back on a blob of buttercream or jam like a pair of wings.
- Cupcake: usually a little larger, with a tall swirl of frosting.
All three are made with the same kind of creamed sponge batter you'd use for a Victoria sponge.
Muffin method vs creaming method
If you want one reason muffins and cupcakes turn out differently, it's how the batter is mixed. Bakers even name the two methods after them.
The muffin method
King Arthur Baking's basic muffin recipe shows the classic approach: whisk the dry ingredients in one bowl, whisk the milk, eggs and oil or melted butter in another, then combine them and stir just until the batter comes together. The batter should still look lumpy. Gisslen's Professional Baking explains why: overmixing makes muffins tough and misshapen, with long holes inside, which bakers call tunnelling. Because the fat is liquid and the mixing is brief, you get that coarse, moist, slightly bready crumb and a domed top.
The creaming method
Cupcakes usually start the way most cakes do. Softened butter and sugar are beaten together until pale and fluffy, which traps air. Eggs go in one at a time, then the flour and any milk are added in turns. King Arthur Baking describes this as the classic and most common cake mixing method. Gisslen notes that creaming gives a fine texture and carries less risk of overmixing, which is why cupcakes have that soft, even crumb.
For muffins, stop stirring as soon as you can't see dry flour, even if the batter looks lumpy. For cupcakes, give the butter and sugar a proper few minutes of beating before anything else goes in.
Following an American recipe? The cups-and-flour wording can catch you out too. Our guide to whether plain flour is the same as all-purpose flour covers the swap.
Cases, tins and swapping batters
Muffins and cupcakes are baked in the same tin. Most "muffin tins" have six or twelve cups, and Wikipedia notes that cupcakes are now usually baked in them. Where they differ is the case:
- Muffin cases tend to be deeper and taller. Tulip-style wraps, made from a square of baking paper, let the batter rise high and spill over into a big muffin top.
- Cupcake cases are usually a little smaller and fluted. Fairy cake cases are smaller and shallower still.
Can you bake muffins in cupcake cases? Yes. The muffins will just be a little smaller and won't have as dramatic a dome, so check them a few minutes early. You can bake cupcakes in muffin cases too; fill them about two-thirds full so there's room for frosting.
Can you swap the batters? You can bake a cupcake batter as "muffins" or a muffin batter as "cupcakes", and you'll get something good to eat. You just won't get the classic version of either. Muffin batter gives a bready cupcake, and cupcake batter gives a soft, cake-like muffin without the craggy top.
And if you only want one, you don't need a tin at all. Wikipedia notes that some bakers still use mugs and teacups for single cakes, which is where the modern mug cake comes in. Our Keto Variety Mug Cake Mix has eight 50g sachets: you add 1 tbsp melted butter and an egg, mix in a mug and microwave for 60 seconds.
Carbs in muffins and cupcakes
CoFID, the UK government's food composition dataset, doesn't have a row called "cupcake", but it has sponge cake with and without butter icing, which is what a cupcake is made from. Here's how they compare per 100g:
| Per 100g | Carbs | Sugars |
|---|---|---|
| American muffin, shop-bought | 47.8g | 27.7g |
| Choc chip muffin, homemade | 53.6g | 28.2g |
| Sponge cake, homemade | 53.1g | 30.3g |
| Sponge with butter icing | 56.2g | 40.0g |
| Butter icing, homemade | 63.4g | 62.8g |
| English muffin, white | 44.2g | 3.4g |
CoFID 2021 food codes 11-738 (muffins, American, not chocolate, retail), 11-1094 (muffins, American style, chocolate chip, homemade), 11-956 (cake, sponge, homemade), 11-1118 (cake, sponge, with butter icing, homemade), 17-783 (icing, butter, homemade) and 11-541 (muffins, English style, white). Carbohydrate excludes fibre, as on UK labels.
Two things stand out. First, per 100g, a sweet muffin and a plain sponge are very close on carbs. The muffin's lower sweetness is balanced by more flour, so it's not automatically the lower-carb choice. Second, the icing is where the sugar really adds up: butter icing is almost two-thirds sugar, so a tall swirl on a cupcake adds a lot. The English muffin is a different story, with very little sugar but plenty of starch from the flour.
Size matters too. A big bakery muffin can easily weigh twice as much as a homemade fairy cake, so the number per cake can be very different from the number per 100g. If you're counting carbs, it's worth weighing one.
Lower-carb muffins and cupcakes
For lower-carb baking, the swaps are the same whichever you're making: replace the wheat flour with nut and coconut flours, swap the sugar for a sweetener that bakes well, and keep the icing sugar out of the frosting. That's how our cake mixes are put together. Each one is a single mix that you can bake as a whole cake or as 12 cupcakes:
- Keto Lemon Cake Mix: whisk 3 eggs with 80g melted butter, stir in the mix and divide between 12 cupcake cases. Bake at 180°C (160°C fan) for 18 to 22 minutes.
- Keto Chocolate Cake Mix: mix 3 large eggs, 100g melted butter and 1 tbsp water, stir in the mix and divide between 12 cupcake cases. Bake at 180°C (160°C fan) for 18 to 22 minutes.
Interestingly, both use melted butter stirred in with the eggs, which is closer to the muffin method than to creaming. So whether you call the results muffins or cupcakes is really up to you. Leave them plain, or top them with a few berries before baking, and they're muffin-style. Frost them and they're cupcakes.
For the frosting, our Powdered Erythritol & Stevia Blend is made to be used 1:1 in place of icing sugar, so it slots straight into buttercream. If you prefer a cream cheese frosting, our keto cream cheese icing uses our granulated erythritol and stevia blend and just three ingredients, and our guide to icing sugar vs powdered sugar explains the terms you'll see in American frosting recipes.
Net carb figures are as shown on each product page and include the eggs and butter you add. Methods and yields are from the product pages.
Both cake mixes contain nuts (almonds) and milk, and you make them with eggs and butter. The mug cake mixes contain almonds. Always check the pack for full allergen information.
Key takeaways
- Muffins are quick breads. Liquid fat, a quick stir and a coarse, domed result.
- Cupcakes are small cakes. Creamed butter and sugar, a fine crumb and usually icing.
- Fairy cakes are the British cousin. Smaller, lighter and simply iced.
- Watch the topping and the size. Per 100g they're similar on carbs; icing and big portions make the difference.
Frequently asked questions
Is a muffin just a cupcake without icing?
Not quite. A classic muffin is a quick bread: it's usually less sweet, made with oil or melted butter and stirred briefly, so it has a coarse, moist crumb and a domed top. A cupcake is a small cake made by creaming butter and sugar, which gives a finer, softer crumb. Icing is the finishing touch, not the only difference.
What are cupcakes called in the UK?
Most people in the UK now say cupcakes, but the traditional British version is the fairy cake. Fairy cakes are usually smaller and lighter, with a thin layer of glacé icing or a little buttercream rather than a tall swirl of frosting. A butterfly cake is a fairy cake with its top cut into two wings.
Can you bake muffins in cupcake cases?
Yes. Muffins baked in cupcake cases will be a little smaller and won't rise into such a big dome, so start checking them a few minutes before the recipe's baking time. Deeper muffin cases or tulip-style paper wraps give the batter more room to rise if you want a classic bakery-style muffin top.
Is muffin batter the same as cupcake batter?
No. Muffin batter is usually mixed by the muffin method: dry ingredients in one bowl, wet in another, then stirred together just until combined and still lumpy. Cupcake batter usually starts by creaming softened butter and sugar until fluffy. You can swap them, but you'll get a bready cupcake or a cake-like muffin.
Are English muffins the same as muffins?
No. An English muffin is a flat, round bread made with yeast, cooked on a griddle and usually split and toasted. American-style muffins are sweeter quick breads raised with baking powder and baked in a muffin tin. In British shops, English muffins are often sold simply as muffins or breakfast muffins.
Sources
- Public Health England / Food Standards Agency. Composition of Foods Integrated Dataset (CoFID) 2021: food codes 11-738, 11-1094, 11-956, 11-1118, 17-783 and 11-541, sheet 1.3 Proximates.
- Wikipedia. Muffin (quick-bread muffins, origin, texture, sweetness, cases and tins), Cupcake (history, names, fairy and butterfly cakes, recipes, pans and liners) and English muffin (yeasted griddle bread, UK naming, Hannah Glasse).
- King Arthur Baking. The best basic muffin recipe (muffin method) and A breakdown of all the different cake mixing methods (creaming method).
- Gisslen, W. Professional Baking, quick breads chapter (muffin and creaming methods, tunnelling, muffins vs cakes).
- Groovy Keto product pages: Keto Lemon Cake Mix, Keto Chocolate Cake Mix, Powdered Erythritol & Stevia Blend and Keto Variety Mug Cake Mix (ingredients, methods, yields, net carbs and allergens). Checked 29 October 2026.
