My Mom NEVER buys extra firm tofu, just doesn't like the texture. One day (about 20 years ago) she bought extra firm by mistake. She didn't want to go back to the store, and didn't want to waste perfectly good food, so she came up with this recipe that has become a favorite for me. Now, she occassionally buys extra firm tofu on purpose! I love this and make it often when I want a simple quick lunch or supper.