Boil water with a kettle and vermicelli noodles in a bowl and cover with warm water for 2 minutes, then drain

Make dipping sauce by mixing peanut butter, fish sauce, juice of one lime, garlic, soy sauce, and sweet chilli. Mix until smooth and set aside

Peel the prawns, slice in half lengthwise and devein

Fill a large bowl with warm water. The bowl need to be large enough to fit the whole rice paper in one go. I like to use a large sauce pan if need be. Submerge the rice papers into the water for 2 seconds. Then place on the counter

On the top part of the rice paper, place 3 prawns with a mint leaf in between, and squash in the lettuce and other herbs. Fold the left and right edges of the rice paper in, then starting from the bottom, roll up to cover the lettuce bundle. Then keep rolling firmly. The rice paper is sticky, it will seal itself.

Serve immediately with the peanut dipping sauce.