There is no one definitive answer to this question. Cook time will vary depending on the make and model of your sandwich maker, as well as the type and size of egg you use. However, most experts recommend cooking eggs for about two minutes in a sandwich maker. If you're looking for a quick and easy breakfast or lunch option, a sandwich maker is a great way to go. By cooking your egg in the sandwich maker, you'll save yourself from having to fry it in a pan. This can not only save you time, but also cleanup time later.