- Mix the lime juice with the fish sauce. Add the sugar and stir until it dissolves. Add the chopped chillis.
- Squeeze the crab meat until as dry as possible then add to the sauce and stir. Drizzle in the sesame oil and stir. Taste. Add more sesame oil if you like. This can be made a few hours in advance and kept in the fridge. Just stir well before serving.
- Place a teaspoon of the mixture into each serving spoon and top each spoon with a strip of cucumber.
