Put the apple, lemon juice, salt, cinnamon, nutmeg, ginger, allspice and ½ cup of the water in a small pot. Bring it to a boil over medium heat and continue to cook for about 10 minutes.
1 small apple with skin, ½ teaspoon lemon juice, ⅛ teaspoon kosher salt, 1 teaspoon cinnamon, ½ teaspoon ground nutmeg, ⅛ teaspoon ginger, ⅛ teaspoon allspice, 1 cup water