Take flour, turmeric, salt in a mixing bowl. Drizzle 2 tbsp of oil and mix well. Add water little by little to make a soft dough. Knead well for 5 mins.
Add a tbsp of oil over it and keep aside for 30 mins. Knead again to incorporate the oil into the dough. If the dough is not loose, add little more water and make the dough loose.
Divide into equal sized balls.
Prepare stuffing by heating jaggery with water just to immerse. Once jaggery is dissolved, filter to remove impurities.
Wash the vessel and start heating the syrup again until it is frothy, raises.
Add coconut to it, keep stirring in medium flame until all the syrup reduces and forms a thick mixture.
Divide into equal sized balls once cold enough to handle.
Using a baking sheet or banana leaf, add few drops of sesame oil and spread the dough into thick disk.
Place the coconut stuffing in the middle, cover it from all the sides.
Pat to make poli, until the stuffing is partially seen on top.
Heat tawa and drizzle some oil or ghee. Transfer the patted poli by inverting the paper/ leaf over the tawa.
Peel off the paper/ leaf. cook in medium flame, both sides by flipping in between, until golden spots appear.