Taffy Apple Salad
["2 cans crushed pineapple", "1 1/2 Tbsp. apple cider vinegar", "1 1/2 c. sugar", "1 beaten egg", "1 Tbsp. flour", "16 oz. Cool Whip", "6 to 7 medium apples", "dry roasted peanuts", "1 bag mini marshmallows"]
["Drain pineapple; set aside (keeping pineapple juice)."]
["pineapple", "apple cider vinegar", "sugar", "egg", "flour", "apples", "peanuts", "marshmallows"]