The Concha y Toro-owned brand is also offering runner-up prizes of Weber barbecues.
On-pack recipe booklets will market the competition and encourage consumers to drink the wine when entertaining outdoors, with the strapline Create Your Own Legendary Barbecue.
Customers can enter the competition via the Casillero del Diablo website, chileanlegend.com. The site tells the story of Concha y Toro founder Don Melchor, who when he found that some of his wines were being stolen, spread the word that the devil lived in his cellar to ward off thieves. Casillero del Diablo means "the devil's cellar".