Instructions

1. Bring a medium saucepan of salted water to a boil. Add prawns, lower heat and poach at a low simmer, uncovered, until just cooked though, about 3 to 4 minutes. Transfer to an ice water bath for a couple minutes, drain and pat dry. Peel and cut in half lengthwise, deveining if necessary.
2. Bring another medium saucepan of water to a boil and add noodles. Cook until just tender, about 3 minutes. Drain in strainer and rinse under cold water. Drain well. Place into a mixing bowl. In a large bowl, stir together vinegar, sugar, salt and sriracha until sugar is dissolved. Add noodles and toss to coat well.
3. Place a clean tea towel or a double thickness of paper towel on a work surface. Fill a shallow baking pan with warm water. Soak a rice paper round in warm water until pliable, about 5 to 10 seconds. Carefully transfer to tea towel or paper towel lined work surface.
4. Arrange 3 prawn halves, cut sides up, in a row across middle bottom third (the part nearest you). Spread a small handful, 3 tbsp (45 ml) marinated noodles on top of shrimp and arrange 3 cilantro sprigs, 3 mint leaves, 6 cucumber matchsticks, 6 green onion strips, 6 to 8 mango matchsticks, and a few avocado slices horizontally on top of noodles. Spread about a tsp of the Japanese mayonnaise over top
5. Fold bottom of rice paper over filling and begin rolling up tightly, stopping at halfway point. Arrange 3 more mint leaves, 3 cilantro sprigs, and mango or avocado along crease, then fold in ends and continue rolling.
6. Transfer roll, seam side down, to a plate and cover with dampened paper towels. Repeat making 7 more rolls in the same manner and serve with Spicy Lime Dipping Sauce or any other desired sauce.