Did you know that you probably have everything you need to dye Easter eggs naturally, right there in your kitchen cupboard? Vegetables such as red cabbage, onion skins, and coffee can be used to color plain white eggs and turn them into beautifully muted, soft pastel colors - Easter treasures! Kids really enjoy figuring out what color different materials will produce -- pretty much the same way our foremothers did when they were experimenting with homegrowns! *Vinegar acts as a dye mordant or dye set. Vinegar works best with spices such as turmeric or beans such as coffee. You do not need to add vinegar to dyes made with berries or herbs. It may morph your color to grey or brown.