The Lickable Wallpaper and Edible Wallpaper

Food in fiction

What it is

Wallpaper in which each pattern is a different flavor — lick the orange, it tastes of orange; lick the pineapple, pineapple; lick the gooseberry, gooseberry — as well as edible wallpaper described as being for "nurseries," implying it is a food for children's walls. The distinction in the novel between "lickable" (which remains on the wall after licking) and "edible" (which can be torn off and eaten) is a fascinating, precise imaginative distinction.

Real-world basis

Edible wafer paper, printed with food-safe inks, is a well-established commercial product used in cake decorating. Edible rice paper has been used in confectionery for centuries. Printed edible films — thin films of starch or gelatin that can be printed with food-safe inkjet inks and applied to cakes, cupcakes, and chocolates — are now manufactured commercially by companies including Decopac and Lucks. None of these products taste of the pattern printed on them; they taste of starch or gelatin. But the technical basis for what Dahl was imagining — a film that can be applied to a surface, that is edible, and that could in principle deliver flavor — exists.

The flavored wallpaper connects directly to the molecular gastronomy tradition of edible films and encapsulated flavors. Ferran Adrià at El Bulli developed edible paper — thin sheets of tapioca or rice starch that could be printed with flavor compounds and consumed as part of a dish. Several of these preparations were deliberately designed to look like paper or fabric while delivering intense flavor on contact with the tongue, exactly as Dahl's lickable wallpaper proposed.

The Wonka food philosophy: It is worth stepping back from the individual food items to consider what they collectively propose. Wonka's factory is organized around a single principle, stated explicitly by Wonka and implicit in every invention: food should be impossible. Not merely good, not even merely excellent, but genuinely impossible — violating the physics and logic of the ordinary world in ways that only a child's imagination can comprehend and only an adult genius can execute. The factory is a critique, delivered in sugar, of the smallness of ordinary food culture. Wonka does not merely make better chocolate than anyone else. He makes food that cannot exist, and then makes it exist.

This is why Dahl's food obsession in this book matters beyond the specific items: he is proposing that the imagination should not be constrained by the possible, that the correct response to the question "what do you want to eat?" is not "something reasonable" but "something that doesn't exist yet." The factory is, in this reading, the highest expression of the culinary imagination — a place where the only limit on what can be eaten is what can be conceived.

The real-world Nestlé connection: Nestlé acquired the rights to the Wonka brand and created an actual Wonka candy line, which was sold in the United States and internationally from the 1970s through 2015. The Wonka line included the Everlasting Gobstopper, Nerds (extremely sour tiny candies), Runts (fruit-shaped hard candies), Laffy Taffy, and SweeTarts. The brand was acquired by Ferrara Candy Company in 2015. An actual Wonka Bar — a chocolate bar in the original branding — was manufactured by Nestlé in the UK for many years and was the direct tie-in product for the 1971 film. It was discontinued multiple times and briefly revived for the 2005 film. A new version was produced for the 2023 prequel film.

The molecular gastronomy connection: Wonka's factory is now widely recognized, in the food world, as a founding text of molecular gastronomy — the movement in haute cuisine that applies the techniques of chemistry and food science to the creation of novel food experiences. Ferran Adrià, who ran the restaurant El Bulli in Catalonia and is widely considered the most influential chef of the late twentieth century, has explicitly cited Wonka's factory as an inspirational text. Heston Blumenthal, the British chef whose restaurant The Fat Duck has produced such creations as "Snail Porridge," "Bacon and Egg Ice Cream," and "The Sound of the Sea," has been described by food critics as the closest real-world approximation of Willy Wonka — a characterization he accepts with pleasure.

Reference notes

Chocolate (Theobroma cacao) — main entry; cacao origins, fermentation, roasting, tempering processes
Conching — chocolate processing entry; Rodolphe Lindt, crystal structure, flavor development
Chewing Gum (History and Technology) — ingredient/processing entry; chicle, gum base, flavor encapsulation
Gobstopper / Jawbreaker — confectionery entry; panning process, layered sugar candy construction
Edible Films and Wafer Paper — food technology entry; rice paper, starch films, commercial applications
Molecular Gastronomy — technique/movement entry; Adrià, Blumenthal, spherification, emulsification
Sugar Confectionery Technology — processing overview; crystallization, caramelization, pulling, casting
Ferran Adrià / El Bulli — cultural context entry; avant-garde cuisine tradition
Heston Blumenthal / The Fat Duck — cultural context entry; UK molecular gastronomy tradition
Nestlé Corporation and Wonka Brand — food industry entry (historical)

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