I first understood that cooking is a chemical reaction when I made a dish called azuki squash for the first time. Azuki squash is a dish made by simply boiling adzuki beans and winter squash together in water and seasoning it with salt, but the flavors of the two ingredients combine to make it very delicious. It's as if a chemical reaction occurs between the two while they are boiling, bringing out a flavor that can't be achieved by simply boiling them separately and combining them. Making azuki squash is very easy. Just boil the adzuki beans in a pot until they are soft, then add the squash and wait for the squash to cook. Once the beans are cooked, season with a little salt. Cut the squash into bite-sized pieces and rub with a little salt. Place it on top of the boiled red beans, cover, and heat until the squash is cooked. Once the squash is cooked, arrange it on the plate and it's done. It is very rare to come across a restaurant that serves a dish calle...