The ‘prawn cocktail’ element in the CRISPS 😂 is the flavour of the sauce served with a traditional prawn cocktail here. Lettuce, prawns and what some call a Marie Rose sauce which can be made quickly by mixing 50/50 tomato ketchup and salad cream (like mayo), some add fresh lemon and a dash of Tabasco. Very traditional; my mum makes it every year as a starter before our Christmas dinner on Christmas day 😃🇬🇧