Grate 6 ears of corn on the large holes of a box grater set in a medium bowl. Cut the kernels from the remaining 2 ears with a sharp knife and add to the bowl. Add 1/2 cup of the flour, the egg, scallions, parsley, salt and pepper; stir until a thick batter forms. Add more flour if the batter seems thin. It should have the consistency of a very thick cake batter.