Rhubarb and Custard Retrocorn Popcorn snack pack 35g Rhubarb & Custard Popcorn – coated with crushed sweets. This is quite simply a British classic. No wonder it’s our best-selling flavour. Combining the fruity sharpness of rhubarb with the rich, creamy sweetness of custard – this fresh-tasting popcorn will conjure up the magical memories of childhood. Those were the days – and this is the flavour to bring them all back. Ingredients Crushed Candy, Glucose Syrup, Flavouring: Citric Acid, Natural Flavouring, Rhubarb, Vanilla. Colour: Beetroot Red, Cureumin. Popped Corn, Olive Oil, Rapseed Oil