Soak rice for few hour and drain all water from it.
Grind rice together with egg,sugar and coconut milk.The consistency of batter should be like thick dosa batter.
Add sesame seeds into the batter,mix well.Keep it aside for 30 mins.
Heat oil in a pan and leave the mould in the centre of the oil for 2 mins.(The mould should be dipped in boiling oil for 4-5 secs each time before you prepare a new cookie,otherwise the cookie batter may not stick to the mould).Dip the hot mould in to the batter(don't put the mould fully just dip ¾th of the mould).
Take the mould out of the batter and put it in hot oil.Gently shake the mould so that the rosette cookie detaches.
Turn it over and fry both sides.Remove and place it on a tissue paper.
Again dip the mould in hot oil for 4-5 sec before the next cookie making.
Repeat this process til all batter finished.When all rosette cookies cools down completely,store it in an airtight container.
Recipe by Kerala Cooking Recipes at https://www.keralacookingrecipes.com/achappamkerala-style-rosette-cookies/