green tea salt (a mixture of powdered green tea and kosher salt which I make in batches and keep in the freezer in a sealed container). To make this dish more interesting, I added umeboshi 梅干し or Japanese salted plum. This was from the last batch of home made that my mother sent me. I removed the meat of the umeboshi from the stone. I also included the red perilla leaves from the umeboshi container (salted red perilla adds the color and flavor to umeboshi) . I chopped finely both umeboshi and red perilla together and mixed in a small amount of sake (or mirin if you prefer some sweetness). For good measure, I also added a chiffonade of perilla.
Since the tofu is very soft, you just mix the toppings with the tofu using a spoon and enjoy. It had a perfect amount of saltiness and flavor. You have to have this with sake. We had this with chilled G-sake.
P.S. I noticed that the taste of leftover G-sake deteriorates after a few days--losing its fresh clean taste and becoming very cloying, even if the the bottle is tightly sealed and kept in a refrigerator. This means that if we open the bottle, we have to finish it in one sitting. What a hardship!