What is a Tunnock's Caramel Wafer?

It's a popular biscuit made by the Scottish company Tunnock's. It consists of five layers of wafer and four layers of caramel, coated in milk chocolate, and is wrapped in distinctive red and gold foil.

Has M&S done brand collaborations with Colin the Caterpillar before?

While M&S has created many variations of Colin for different seasons and events, like a Christmas or Easter edition, they have not produced a version that is an official, branded crossover with another food company like Tunnock's.

Tunnock's Caramel Wafer Colin the Caterpillar Cake Concept

An Ambitious Crossover

This is an ambitious concept. It proposes a direct collaboration between two very different, but equally cherished, UK food brands. On one side, you have Marks & Spencer’s Colin the Caterpillar, the undisputed king of supermarket own-brand birthday cakes since 1990. On the other, the Tunnock’s Caramel Wafer, a pillar of Scottish confectionery for over sixty years.

Unlike many food mashups which occur under one corporate roof—think of Cadbury creating Oreo-filled bars, both being Mondelēz brands—this idea crosses company lines. It bridges the gap between a supermarket’s signature character cake and a biscuit with a fiercely loyal, almost nationalistic, following. The mockup’s packaging reflects this, merging Colin’s familiar green branding with the distinctive red and gold stripes of a Tunnock’s wrapper.

The Colin Ecosystem

M&S has spent decades building the Colin brand into something far bigger than a single cake. The core product, a chocolate sponge roll with a solid white chocolate face, has spawned an entire ecosystem of spin-offs. The current range is enormous, extending well beyond cake into the confectionery aisle.

You can find Mini Colin the Caterpillar Cakes for smaller parties, bags of Colin the Caterpillar Softies, and tubs of his white chocolate Speckles. The sweet selection also includes Colin the Caterpillar Cola Gums, Fruit Gums, and Cherry Gums, alongside sour variants like Sourtastic, Sour Stomps, and Fruit Sours. There are even Colin-branded Party Cups and a general Party Time selection. A flavour crossover with an external brand like Tunnock’s, however, would be an entirely new direction for the character.

Translating The Wafer

The Tunnock’s Caramel Wafer has a simple, non-negotiable construction: five layers of wafer sandwiching four layers of caramel, all coated in milk chocolate. The design here suggests how those elements could be integrated into the Colin format. The mockup shows the caterpillar’s chocolate-coated body decorated with what appear to be chopped-up sections of actual Caramel Wafers.

This is a logical interpretation. The crunchy texture of the wafer and the chewy caramel would be an obvious addition to the soft sponge and buttercream filling. The flavour profile itself isn’t a huge departure from Colin’s chocolate base, making it a plausible, if ambitious, limited edition.

What the real range looks like

The real Colin the Caterpillar range is extensive, covering the classic cake, Mini Cakes, and a wide array of sweets like Softies, Speckles, Cola Gums, Fruit Gums, and several sour versions. This Tunnock’s Caramel Wafer edition is a conceptual brand crossover, a move M&S hasn’t made with the Colin cake itself before.

M S Colin the Caterpillar Cake
M S Colin the Caterpillar Softies
M S Colin the Caterpillar Speckles
M S Colin the Caterpillar Cola Gums
M S Mini Colin the Caterpillar Cakes
M S Colin the Caterpillar Sourtastic
M S Colin the Caterpillar Fruit Gums
M S Colin the Caterpillar Party Cups
M S Colin the Caterpillar Party Time
M S Colin the Caterpillar Sour Stomps

Frequently asked questions

What is a Tunnock’s Caramel Wafer?: It’s a popular biscuit made by the Scottish company Tunnock’s. It consists of five layers of wafer and four layers of caramel, coated in milk chocolate, and is wrapped in distinctive red and gold foil.
Has M&S done brand collaborations with Colin the Caterpillar before?: While M&S has created many variations of Colin for different seasons and events, like a Christmas or Easter edition, they have not produced a version that is an official, branded crossover with another food company like Tunnock’s.
Is the Tunnock’s Caramel Wafer Colin the Caterpillar cake real?: No, it is a Snackfish — a mockup created by UK Snack Attack — and it is not sold anywhere. It is a piece of digital art designed to look like a real product.

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You have been Snackfished!

Snackfish :⁣⁣
[sn-a-ck-fish] verb ⁣⁣
A snack that lies about its legitimacy as an official product online for internet clout and attention. Most commonly fabricated in Adobe Photoshop or using the unofficial Snackfish AI