Pour the flour into a bowl, dig a well in the center and add the oil, salt and curry, then pour the beer gradually incorporating the flour until a smooth paste, thicker than a paste pancakes

Let stand for 1 hour. Beat the egg whites until stiff and gently add them to the donut dough

Heat the oil bath (170 ° C). Dip the shrimp tails in the donut dough, then dip them in sets of 3 or 4 in hot oil and cook for about 3 minutes. Drain on paper towels and keep them warm.