Saikyō White Miso Soup (西京白味噌汁, Saikyō Shiro Miso Shiru)

White miso looks too gentle to make a proper soup. That is its strength. Saikyō miso is pale, sweet, and low in salt, fermented with more rice koji than the darker misos, so it doesn't bully the bowl. It carries new potatoes in early summer or kabocha when the cold comes, letting the season speak without asking a sauce to do the talking.

The first secret is not the miso, oddly enough. It's the dashi beneath it. Steep konbu slowly and lift it before the water boils, because boiled kelp gives bitterness and a slick edge. Let katsuobushi fall through hot water off the heat, then strain without squeezing, because squeezing presses out the heavy, oily taste. A clear stock makes the sweet miso taste round instead of sugary.

Then take the pot off the heat. Dissolve the miso in a ladle or small bowl and ease it back into the soup. Boil it and the fragrance flattens, the gentle rice sweetness goes dull, and you wonder why Kyoto made such a fuss. Don't let the soup roar at you. It should only quiver, pale and calm, with tender vegetables underneath. This is honmono made in a weeknight pot: one good stock, one good miso, nothing hidden.