Smoked tofu and wood fungus spring rolls

Spring roll wrappers need to be at room temperature as they are then more pliable. Those I used here were 20cm square; if you can only find larger wrappers, cut them down to size, and if you can only find smaller ones you’ll get quite a few more smaller rolls. Black vinegar can be bought from Chinese food stores and is absolutely delicious – not too acidic, quite sweet and with flavours of cinnamon, orange peel and star anise. If you can’t find it, replace it with equal parts lemon juice, s