Boil enough water well. In a mixing bowl, take the kozhukattai flour/ idiyappam flour. Add salt, sesame oil to it.
Mix well, add boiling hot water and use a spatula to incorporate the hot water evenly.
Once warm enough to handle, knead to dough.
Divide into equal sized balls according to the size of kozhukattai you want. Make both stuffing and dough, equal sized balls.
Grease your hands with sesame oil, smooth the dough in your hands.
Flatten to thick, palm size dics. Place stuffing inside.
Gather the sides so as to cover the stuffing. Seal and roll.
Fill it in the mould and shape it carefully.
Steam for 7 minutes approximately. Repeat to finish.