The package contains a sweetened vinegar sauce, a mix of dehydrated veggies and sesame seeds, and the tofu/soybean curd "pockets". Simply take 2 cups of rice ( I used purple and white rice), mix in the packets, form into balls and stuff in the tofu. When I want to make this quickly, I scoop the rice up with a spoon and stuff it into the pockets, then my hands stay un-ricey-gooey.
The taste is the slightly sweetened flavor of rice. I love them!