This is a gentle, deeply comforting soup that sits somewhere between Japanese simplicity and everyday home cooking. It’s light but savoury, and the miso gives it a quiet depth rather than an assertive punch. I make this when I want something warming without heaviness, or when the fridge has a few mushrooms that deserve to be treated kindly.
Using more than one variety of mushroom makes a noticeable difference. The contrast in texture and flavour turns a very simple soup into something more interesting, without adding complexity.
Course Appetizer, Lunch, Main Course
Cuisine Japanese
Keyword gluten free, mushrooms, soup, vegan
Prep Time 5 minutesminutes
Cook Time 20 minutesminutes
Servings 4people
Ingredients
400gmushroomsI usually use two or three varieties. Shiitake and king oyster are a favourite combination, but use what looks good and fresh.
1Tbsplight miso pasteUse rice-based miso (kome miso) for a gluten free version.
500mlchicken stockUse vegetable stock for a vegetarian version.
500mlwater
Instructions
Slice the mushrooms into pieces about 5 mm thick. Try to keep them reasonably even so they cook at the same rate.
400 g mushrooms
Place the miso paste into a saucepan over very low heat. Add a small amount of freshly boiled water and stir gently until the miso dissolves into a smooth paste with no lumps. This step is worth doing slowly — miso doesn’t like to be rushed.
1 Tbsp light miso paste
Once smooth, add the remaining water and the stock, followed by the mushrooms. Stir gently to combine.
500 ml chicken stock, 500 ml water
Bring the soup to a very gentle boil, then reduce the heat, cover with a lid, and let it simmer quietly for about 30 minutes. The mushrooms will soften and the flavours will settle into one another.
Notes
Taste before serving. Miso varies a lot in saltiness, so it’s better to adjust at the end rather than at the beginning.Vegetarian adaptation:
This soup is easily made vegetarian by replacing the chicken stock with a good-quality vegetable stock. A mushroom-based stock works particularly well and reinforces the soup’s natural umami without changing its character.