The Subway sweet onion chicken teriyaki is a cult order: juicy glazed chicken, crunchy fresh vegetables, and that sweet onion sauce that ties the whole thing together. Recreating it at home is easier than you would think, and the homemade version has real advantages — you control the sugar in the sauce, the chicken is freshly cooked rather than held warm, and each wrap costs under £2 instead of the £6-plus you would pay in store. This copycat subway chicken teriyaki wrap delivers the full experience in about 25 minutes: caramelised teriyaki chicken strips, a homemade sweet onion sauce, and loads of crunchy veg in a toasted wholemeal wrap. The…