Retailers can offer shoppers the chance to win 70,000 Xbox prizes as Doritos unveils its latest on-pack promotion.

Shopper can win until December 31 and the activity is the first on-pack promotion that the brand has ran during the Christmas period.

The promotion is rolling out on core Doritos sharing and single-serve packs, as well as Roulette, Tobasco Sauce and Heatburst flavours.

Each pack will contain a code that shoppers will be encouraged to enter on the brand’s website. Prizes include Xbox Ones, games, subscriptions and free packs of Doritos.