1Begin heating fat in a deep fat fryer; use a deep fat thermometer. Stir corn meal, sugar, soda, and salt together. Mix well. Place onion in a bowl, add egg and buttermilk and beat until frothy; pour all at once into meal and stir lightly to mix. Add just enough water to make dough a good dropping consistency (it should be about the same as drop biscuit dough). When fat reaches 375 F.,scoop up rounded 1/2 tablespoons of dough, shape lightly on end of spoon to smooth our rough edges, drop into fat and fry about 2 minutes or until evenly browned.Drain quickly on paper toweling and serve hush puppies sizzling hot.