- To a mixing bowl - add broken corn. Add salt to it. Add sugar to it.Mix well. Add water little by little till it resembles wet coarse crumb texture. If you hold the mixture with your palms. It should hold together like this and when you slightly break it should fall apart this is the right consistency for a soft puttu. Take your puttu maker, grease it with oil. Add a thin layer of coconut then add corn mixture. Alternate with coconut and corn mixture layers and finish off, let the starting and ending be with coconut layers. Close with lid. Attach with pressure cooker and steam cook for 15-20 mins. Carefully push it from other side, cut and serve. Serve hot with sugar.