If not serving rolls immediately, place, seam-side down, on a plastic-wrap-lined tray, then cover with a damp paper towel and refrigerate until ready to serve.
Few soups pack the punchy flavour of a delicious savoury miso. Yellow miso (shinshu), is a smooth, deep-yellow, fairly salty, tart, fermented soya bean paste. Teamed with tofu and spinach it makes a delicious, fresh and healthy broth.