Ingredient !
4 cups whole milk. Half  cup corn starch. 1 cup sugar (or to taste.). Half  teaspoon salt. Half  teaspoon mastic gum (ground). 2 cups heavy whipping cream. pistachios (depending on your taste)
Preparation !
In a pot, add milk, sugar, salt and cornstarch mixing very well until there is no lumps left. Put the pot on medium heat, keep stirring until it starts to bubble. Turn off the heat, cover and let it cool down until it reaches room temperature. Beat the whipping cream, until it reaches stiff peak. Add the cornstarch mixture to the whipping cream, beat together until it comes to a smooth consistency You can add pistachios at this point or wait until serving time. Pour into a freezer safe container, smooth top and freeze for 8 hour or until it is completely frozen Scoop in ice cream bowls, sprinkle top with some more pistachios. Enjoy