Bring water to a boil with 1/2 teaspoon of salt in a large pot on medium-high, in the meanwhile prepare your dumplings.

Peel green bananas. Cut the ends off the banana, make a vertical cut just beneath the skin to reveal the white flesh, pry the skin off using a knife, or peel it with the knife. Discard the skin.

Using a box grater, rub the banana up and down the smallest holes until all the banana is grated, repeat with the other bananas until you have about 1 cup full.

Place the grated banana in a bowl, add flour and salt, and mix to combine. Add the water and knead to form a dough ball. If your dough is too sticky, you can add extra flour and if not all the flour is incorporated, add a little water.

Divide the dough into equal parts to form about 9 or 10 balls. Take each ball and flatten it to about 1/2 an inch thick.

Place dumplings in boiling water, and reduce to simmer for 30 minutes; dumplings should become more buoyant.

Remove from boiling water with a slotted spoon and serve.