A food fight is brewing in the cake aisles. In the Marks and Spencer corner, Colin the Caterpillar is squaring up to Aldi’s lookalike Cuthbert the Caterpillar and calling him a copycake.

Colin has been a cake champ and birthday party icon since he was launched 30 years ago and has 15 million sales under his belt. But rival caterpillars in all the other supermarkets are also contesting his crown.

Marks and Spencers’ legal action claiming trademark infringement against Aldi rumbles on, but Cuthbert isn’t currently on the Aldi shelves.

Meanwhile, we investigate who reigns supreme in the only contest that matters among the remaining contenders: the taste test.

Marks and Spencer, Aldi, Asda, Waitrose, Sainsbury's, Tesco and the Coop.
Marks and Spencer, Aldi, Asda, Waitrose, Sainsbury's, Tesco and the Coop all do versions of Colin

Mum-of-four Ruth Dascombe, 48, from Tunbridge Wells in Kent, and her ten-year-old twins Rufus and Cress had the enviable task of dissecting all the chocolate caterpillars they could stomach.

Marks & Spencer, Colin the Caterpillar

Colin
The OG, M&S's Colin

Ruth says: “We did a blind taste so Rufus and Cress didn’t know this was the original. But they confirmed Colin is the top caterpillar.”

Cress says: “It was really chocolatey, had the nicest chocolate and the sponge was super soft. It wasn’t as sweet as the others, which is a good thing because you can eat much more of it before your tummy has had enough.” 5/5

Sainsbury’s, Wiggles the Caterpillar

Sainsbury's Wiggles the Caterpillar cake
Sainsbury's Wiggles the Caterpillar cake

Ruth says: “Everyone enjoyed this cake because it had a delicious chocolate, great flavour and a soft sponge.”

Cress says: “Wiggles wowed. I could have eaten it from top to tail if Mum had let me.” 4/5

Asda, Clyde the Caterpillar

Asda's Clyde the Caterpillar cake
Asda's Clyde the Caterpillar cake

Ruth says: “Another cake that disintegrated when it was cut, and this was even drier than the one from Morrisons.”

Cress says: “The feet and face didn’t taste great but I still loved the cake.” 3/5

Morrisons, Morris the Caterpillar

Morrison's Morris the Caterpillar cake
Morrison's Morris the Caterpillar cake

Ruth says: “Morris was so hard to cut, the slices fell apart until there was just a pile of chocolate. No good for a party if you want to wrap it up and pop it in a party bag.”

Rufus says: “It was so dry so when I tried to pick it up it made a mess of my t-shirt. But the bits that made my mouth tasted ace.” 3/5

Tesco, Curly the Caterpillar

Tesco's Spencer Colin the Caterpillar cake
Tesco's Spencer Colin the Caterpillar cake

Ruth says: Great value for money and looks OK. But way too sweet for adults.”

Rufus says: “Pretty yummy. It’s a good thing if it’s too sweet for adults - it means there’s more for us kids.” 2/5

Waitrose, Cecil the Caterpillar

Waitrose Cecil the Caterpillar cake
Waitrose Cecil the Caterpillar cake

Ruth says: “Cloyingly sweet, this has 34% sugar compared to the 24% in the Morrison’s cake.”

Rufus says: “It looks cool and I loved the white chocolate face and feet, but had a pointy tail which made him look like a grub rather than a caterpillar. It was really sweet so one little bite made me feel I’d had enough.” 2/5

Co-Op, Charlie the Caterpillar

Coop's Charlie the Caterpillar cake
Co-op's Charlie the Caterpillar cake

Ruth says: “Very much on the dry side, and has a gormless face.”

Cress says: “The feet were fondant which isn’t as tasty as white chocolate. I needed a glass of water after a taste because it was too crumbly. Sorry Charlie, but you’re not my favourite.” 1/5