Step 1
To make the cucumber dipping sauce, combine vinegar, sugar and ½ cup (125ml) water in a small saucepan over low heat. Cook, stirring, for 2 mins or until sugar dissolves. Increase heat to high and bring to the boil. Cook for 5 mins or until syrup thickens. Set aside to cool completely.
Step 2
Meanwhile, heat oil in a large frying pan over medium-high heat. Add mince. Cook, stirring with a wooden spoon to break up any lumps, for 5 mins or until mince changes colour. Add potato and carrot. Cook, stirring, for 5 mins or until potato is tender. Add the curry paste and peas and cook for 2 mins or until heated through. Set aside to cool.
Step 3
Use a 7cm round pastry cutter to cut 9 discs from each pastry sheet. Place 2 tsp of the mince mixture in the centre of each disc. Brush edges with water and fold in half to enclose filling. Pinch edges together to seal.
Step 4
Add enough extra oil to a wok or saucepan to reach a depth of 6cm. Heat to 190°C over high heat (when oil is ready a cube of bread will turn golden in 10 secs). Add 6 curry puffs and cook for 3 mins or until puffed and golden. Use a slotted spoon to transfer to a plate lined with paper towel. Repeat in 5 more batches with remaining curry puffs.
Step 5
Add the cucumber and coriander to the vinegar mixture. Serve curry puffs on a serving platter with cucumber dipping sauce.