Fat Cat Purry Purry Sauce. Stir it through a wok-fried stir-fry for instant magic. Drizzle over roasted veggies, use as a spicy marinade, or dip your fries into it if you're feeling fearless. Fat Cat’s Purry-Purry Sauce is a bold, tongue-tingling blend inspired by the classic South African Piri-Piri sauce — with a flavourful twist from Southeast Asia.