Step 1

Place fish, curry paste and egg white in the bowl of a food processor and process until almost smooth. Transfer to a medium bowl. Add beans and lime leaves, and stir until combined. Divide mixture into 16 equal portions. Use wet hands to shape portions into 4cm patties.

Step 2

Heat oil in a non-stick frying pan over medium heat. Add half the patties and cook for 2 minutes each side or until cooked through. Transfer to a plate lined with paper towel. Cover with foil to keep warm. Repeat with remaining patties, reheating pan between batches.

Step 3

To make the cucumber sauce, combine sugar and rice vinegar in a small bowl and stir until sugar dissolves. Add water, fish sauce, cucumber and chilli, and stir until combined.

Step 4

Arrange the patties on a serving platter and serve immediately with the cucumber sauce.