Mature cheddar cheese & chive seasoned potato crisps. Find out more: tyrrellscrisps/sustainability. ISCC Certified Supporting the Circular Economy. The tangy hit of mature cheddar with the oniony twang of that most snippable of herbs. .making them. "Tyrrellbly Tyrrellbly Tasty". Only the Finest Spuds are good enough. We use the best dressed spuds and never any artificial ingredients (such as artificial flavours, colours or MSG). Oodles of Flavour (to tickle your tastebuds). We apply the perfect amount of your favourite seasoning. Fear not folks, our crisps are just the same and still Tyrrellbly, Tyrrellbly Tasty!