Traditional commercial wafer cookies do not typically contain eggs in their primary batter formulation. The foundational ingredients of standard crispy wafers consist simply of wheat flour, water, sugar, and vegetable fats or oils, which are mixed into a fluid batter and baked rapidly between hot iron plates. However, certain gourmet, artisanal, or specialty filled wafer varieties may incorporate dried egg powders or dairy components, making it necessary to review product ingredient labels.