Blend or process prawns to mince them. Using egg beaters or cake mixer, mix minced prawns with remaining ingredients. Add a little water if dough is too dry, or a little potato or tapioca starch if dough is too sticky. Knead dough about 10 minutes until dough is soft but firm. Form rolls like 1" sausages, throwing them hard against a cutting board to remove any air bubbles. Place rolls in banana leaf or foil, and place in steamer with vent. Steam at medium heat for about 1 hour. Let cool and refrigerate overnight. Remove from fridge and bring to room temperature. Slice thinly and place on dehydrator tray. Dehydrate 12 hours. Heat about 1" oil to medium high in a skillet (or use a deep-fryer). Submerge in oil to fry crackers. They should puff up as they fry. Remove quickly before they brown.