For this recipe, it is preferable to use thick yogurt. To get a thick yogurt, take about 2 times more than usual and throw it on a gauze to glass it with excess liquid. It will take several hours, it is better to put it to drain for the night in the refrigerator.
Whisk the finished yogurt together with cream, vanilla and salt.
Add the condensed milk and beat again.
Pour into a container in which you will freeze, cover and put in the freezer overnight.