Elderberry Pie Filling
["1 qt. elderberries", "1 1/4 c. sugar", "1 Tbsp. vinegar", "4 Tbsp. milk"]
["Pour enough water in a pan to cover elderberries.", "Boil for 15 minutes.", "Add sugar; heat to boiling.", "Add vinegar.", "Thicken as you would for gravy (mix water and flour); make it thick.", "Stir in milk.", "Chill overnight."]
["elderberries", "sugar", "vinegar", "milk"]