Purple snap peas are a relatively rare variety of snap peas. Plus, they have purple pods that contain lime green peas with a crunchy texture and a sweet earthy flavor. Nutritionally, Purple snap peas are a source of iron, and Vitamins A & C, which in turn protects against immune system deficiencies, cardiovascular disease, prenatal health problems, eye disease, and even skin wrinkling. Purple Sugar Snap peas can be eaten raw or cooked, and can also be used in place of green snap peas. In addition, they provide a sweet crunch to salads, and can be steamed, boiled, and roasted.