Sheets of tofu skin are like the phyllo dough of Chinese cuisine. They are extremely thin, and you can wrap them around any number of fillings to make tofu skin packages. Or slice the sheets of tofu skin real thin to make "noodles."
'tofu skin' on Serious Eats
Steamed pork-stuffed tofu skin rolls.
Tofu skin cut into noodle-like strips and stir-fried with soy sauce and oyster sauce.
If you shop at Asian markets, you may have seen packages of tan-colored, wrinkled bundles resembling gnarled sticks. While its dried appearance may not look particularly appetizing, tofu skin, also called yuba, dried beancurd, or soybean skin, is my go-to vegetarian option to serve to vegetarians who miss the taste of meat.