Preheat the oven to 425 degrees. Line 2 sheet pans with parchment or silpat. Pipe the profiteroles, 1 1/2 inches apart. They should be about 2 inches wide and tall. Brush the tops with egg wash and place in the oven. Cook for 15 minutes, reduce the heat to 400, rotate, and cook for 15 minutes. Remove from the oven and cool completely before filling. Recipe yields about 40 profiteroles.