1. Mix together flour, rice flour, baking powder and sesame seeds.
2. Using a whisk, stir in the curry paste, soy sauce, egg and water to make a thin coating batter.
3. If a thicker paste is desired, use lesser water.
4. Toss prawns in extra flour - dip in batter.
5. Deep fry until golden brown.
6. Fry on medium heat.
7. Drain excess oil and remove from oil.
8. Serve hot with chutneys or sauces.