1 Box matzo ball soup mix (e.g., Manischewitz)
9 cups water
1/2 cup Vital wheat gluten
1/2 cup water
2 tablespoon oil
2 Celery stalks
In a large pot (5 quart) put 9 cups of water plus the broth packet that comes with the mix. Bring to a boil.
Meanwhile, in a medium bowl place the matzo (from the packet) and the vital wheat gluten and mix. Measure the 1/2 cup water and add the 2 Tbsp. oil to it. Mix well with a fork and add to the bowl containing the matzo. Mix until it forms a ball, but then stop--do not overmix. Form approximately 25 small balls (more is fine). When the water is boiling add the balls, cover and boil lightly for 7 minutes.
Chop the carrots and celery. After the 7 minutes add the vegetables, cover and simmer for 20 minutes. When those 20 minutes are up, cut one of the balls in half--if it is not done in the middle, continue simmering. It can simmer for a long time if the heat is low enough.