Grind all the spice ingredients. Add 2 tablespoons of oil and grind again. Heat the remaining oil and cook the spices over a low heat, stirring for about 5 minutes or until very fragrant. Add the Vietnamese mint and water and bring back to a boil. Stir in the coconut milk with sugar and salt. Simmer over low heat for 10 minutes. While this is cooking beat the eggs. Brush a 20cm pan with oil and make 2 omelettes with the eggs. Roll up and slice thinly. This can be done well in advance up this stage.