2) In a food processor, pulse the coconut until coarsely ground and transfer to a shallow bowl. Mix the coconut with the breadcrumbs, curry powder and salt, and set aside.
3) Beat the egg whites until slightly foamy. Dip the prawns in egg white and coat with coconut mixture. Repeat to form a double coating.
4) Place the prawns on a rack placed within a sheet pan and bake for 10 mins. Garnish with lime wedges and serve.