Pour whipping cream in a bowl and whip until almost thick.  Then add salt & vanilla or extract.   Continue to whip until thickened and peaks form.   Add a little condensed milk and fold in to whip cream mixture.   Repeat until all the condensed milk has been added.   Fold and mix well.   Then add desired add-ins.  Pour in a 9x 5 loaf pan.  Freeze until firm.   Enjoy!