Do you mean pickles or do you mean pickle (removes oxidization and flux from jewelery)
You can find many different recipes for pickles. The usual vegetable to start with is cucumbers. They aren't particularly nutritious, but neither are they bad for you.Dill is the spice that gives many pickles their special flavor. Garlic adds to this. Vinegar and salt preserve the pickles. Calcium chloride can be used for extra crunchiness and salty flavor without the sodium. Sometimes sugar is added for sweetness and preservation.A very important ingredient is time. You need to let them soak for at least a couple weeks, if not several months.By the way, you might also be interested in making kimchee, another variety of preserved veggies.