Wash and chop apples, keeping the peels and cores
Place the apple pieces in a clean glass jar
Add sugar or honey if desired
Pour in filtered water until the apples are fully covered
Stir with a clean utensil
Cover the jar with a cloth or paper towel and secure it with a rubber band
Store at room temperature away from direct sunlight
Stir once daily for about 1 to 2 weeks
Strain out the apple solids
Return the liquid to the jar
Cover again with cloth and secure it
Let it ferment for 3 to 6 weeks, stirring occasionally
Taste until it reaches the desired vinegar flavor
Bottle and store in a cool, dark place