These are best made fresh and served hot. The batter can be made in advance and refrigerated. However, if they are made ahead of time, then reheat in a stack of four, properly wrapped, in the microwave oven (1 to 2 minutes) or the conventional oven (10 minutes at 375 degrees F). Healthy Alternative: Make on a heavy skillet, using oil spray or very little oil. Use them as wraps and fill with sauteed vegetables or beans.