make masala of prawns using all the ingredients except the rice flour a

make a dough using rice flour salt and water.

make small balls from the dough

fill the masala in to the balls

continue the same with the remaining portion and make in to shapes of your wish.

make in to shapes of your wish.

and put some coconut above the ada

then using a pressure cooker or idli maker steam the ada's

it will take about 15 to 20 mint to get cooked and our ada is ready