Mix together finely chopped shiso, miso and ra-yu.
If you don't like it spicy, use sesame oil instead of ra-yu.
Put the combined ingredients in Step 1 on top of the tofu and it's done.
If you pour a little soy sauce under the tofu, just enough to color it slightly before putting the tofu in the serving dish, it will round out the flavors. Don't pour soy sauce over the tofu, or it will clash with the saltiness of the miso.
Story Behind this Recipe
I just mixed together flavors that I like, and lo and behold, they went perfectly with hiyayakko. Since then discovery, this is the only way I eat tofu.
No particular hints! Adjust the ingredients to taste.