In a medium mixing bowl, mix the matza meal, salt, eggs, club soda, and vegetable oil (or chicken fat). Chill for 30 minutes or more.
Bring your stock to a simmer. Add carrots and celery. With wet hands, shape the matza mixture into little balls, about 1 inch wide. Do not press hard, unless you want the matza balls to be firm. Place balls on a big flat plate. Once you have shaped all your matza balls, refrigerate until you are ready to use them. Then, gently drop them into the simmering broth. Place a tight fitting lid on top, and set your timer for 20 minutes.
Your soup is ready! Just before serving, add dill and parsley to the pot (optional) Taste for salt and adjust. Enjoy!
Notes
Note: You’ll have the best results if you let the matzah ball mix chill in the fridge for 30 minutes or more, before shaping the balls.