In a large bowl mix together the sugar, soy sauce and sweet chilli sauce and stir in the turkey to coat evenly. Cover and chill for 20 minutes if you have the time. Heat the oil in a wok or large frying pan and stir-fry the red onion and baby corn cobs for 2-3 minutes. Remove the turkey strips with a slotted spoon and add to the wok or frying pan and stir-fry for 5 minutes until cooked through. Slice into the thickest turkey strip to make sure the juices are running clear. That's how you know the meat is completely cooked.
Meanwhile, mix the cornflour with 1tbsp of water to a thick smooth paste and add to the marinade. Pour the marinade into the wok, add the mangetout and stir fry for 1-2 minutes until thick and glossy. Divide the mixture between the 8 warmed flour tortillas, scatter with fresh coriander leaves, wrap and serve immediately.
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For top tips on protecting you and your family when preparing raw meat and poultry, visit Food Safety in the Home.