Wash the zucchini and cut them in round slices 1/4 inch thick.
Remove the zucchini from the water once they have boiled for 2 minutes.
In the same water add the vinegar and the oil. Chop the garlic and mint and add to the water as well.
Bring the entire content to a boil, pour over the zucchini and serve.
These zucchini can be served hot or cold.