Bring a pot of water to a boil. Add the noodles and cook for 4 minutes, gently loosening them as they cook. Drain in a colander, rinse under cold running water, and drain well.

In a bowl, combine the included soup base with a little water and mix well. Once dissolved, add the soy milk and mix again.

Add the noodles to the bowl. Arrange the yuba, cut into bite-sized pieces, on top. Add the toppings, and sprinkle the included spice packet if desired. Serve immediately.