Put the water, celery, bouillon cubes, and optional carrot and onion in a saucepan and simmer for 20 minutes. That’s all. Taste for salt. Nonna Lucia Rossi Pavanello removes the vegetables, but you might want to press them through a food mill or puree them and return them to the broth.
Nonna Lucia cooks her fine ribbons of homemade pasta in the