With a mandoline or vegetable peeler, cut apples into very thin slices. Place apples in a 1-quart jar. In a large saucepan, bring remaining ingredients to a boil. Carefully ladle hot liquid over apples. Cover and refrigerate overnight.
Pickled Apples Tips
How else can you cut the apples?
These apples mimic a slaw texture after pickling. Thin sticks or fairly thin wedges could work—experimentation is key! Keep in mind that too-large pieces might give you an unusual crisp bite.