In Hindi, this is called Nariyal ka burada. If you don’t find it, use fresh coconut, or frozen coconut scrapings. Make sure they are unsweetened though.
I’ve tried it without milkpowder and it turns out just fine. You may reduce the condensed milk by another 2-3 tbsp, and add a little more if mixture is too dry.
With the leftover condensed milk, try my recipe for Vietnamese Iced Coffee, another addictive thing!!