Step 1
In a bowl, whisk together eggs and olive oil. Add both amounts of club soda and salt, and stir well. Mix in the matzo meal to form a workable dough. If the mixture is too wet, stir in 60 g more matzo meal. Cover and refrigerate for 30 minutes.
Step 2
Bring a large pot of water to a boil. Wet your hands and shape the matzo ball dough into walnut-size balls. Gently place the matzo balls into the boiling water. Reduce the heat to low, cover, and simmer the matzo balls until tender, for 25 to 30 minutes.