1) Blend mango chunks, custard powder with a glass of water 2) Strain in a pot, if mangoes are sour can add sugar and if color is not orange can add color too 3) Keep on boil add in pineapple cubes 4) Boil once or just after you see the pineapple looks like canned pineapple, if its very thick can add water 5) Let it cool down then keep in freezer to chill not freeze 6) Remove in jug or punch glasses serve chilled