Mash the cooked cassava with a fork, potato ricer, or in a blender until smooth.
Make the dough:
Put the cassava mash into a bowl.
Add the salt, (egg), and flour.
Knead everything into a smooth dough. If too sticky, add a little more flour.
Shape the gnocchi:
Divide the dough into portions and shape into logs (about 2 cm thick).
Cut into small pieces and, if desired, press a pattern into them with a fork.
Cook the gnocchi:
Cook in boiling salted water until they rise to the surface (about 2–3 minutes).
Remove with a slotted spoon and drain well.
Serving suggestions:
With sage butter and Parmesan cheese
In tomato sauce
With pesto
Sauté briefly with garlic and vegetables