Chinese-spiced steak wraps
By Carl Clarke From Saturday Kitchen Ingredients For the steak 500g/1lb 2oz sirloin, sliced into strips against the grain 100g/3½oz cumin seeds 100g/3½oz coriander seeds 50g/1¾oz brown sugar pinch Sichuan pepper pinch salt pinch sushi vinegar powder (available from Asian supermarkets or online) 1 …