Pressure cook raw mangoes for 2-3 whistles - remove after cooling - seperate the pulp & let it cool.
Take the pulp in a mixie - add 2/2.5 cups of powdered sugar (add more sugar as reqd. ...taste should be equal amounts of tangy & sweet) + cardamom powder + saffron sprigs + half a pinch of salt + 3-4 cups of water - whisk till the mixture is a thick squashy consistency pulp
Your Squash is ready - transfer to a bottle and store refrigerated for further use
For serving - add squash 1/4 glass + water + ice cubes - add sugar if required ...serves 10-15 glasses