Retro look, timeless flavour and only in Canada. Doritos Ketchup Tortilla Chips are back for a limited time only. To mark its return, Doritos Canada is dropping its first-ever capsule collection inspired by Canada's most coveted limited time offering of Doritos ever. The Doritos Ketchup Collection features a full range of streetwear staples. Doritos Ketchup chips are now available on store shelves, wherever Doritos products are sold, but only for a limited time only.