Our Tyrrells Mature Cheddar Crisps are made with the finest Australian potatoes, complete with jackets, sliced with deep ridges and slow-cooked three times for a very crunchy, crinkly treat. With No Artificial Nasties and Gluten Free.our tyrrells mature cheddar crisps are made with the finest australian potatoes, complete with jackets, sliced with deep ridges and slow-cooked thr...