First we need to prepare icecream. Take half litre of milk in a pan and heat it till it remains half. Keep it aside to let it cool for few hours. Now take two alphonso mangoes (any another mango can also be used, I have taken alphonso). Peel them and put in mixer jar, add sugar as required then blend them. Now add the milk and mix them well. Pour the mixture in a jar and let it freeze overnight in freezer.