Seven Layer Gelatin Salad
["1 (3 oz.) pkg. cherry gelatin", "4 c. boiling water, divided", "2 1/2 c. cold water, divided", "2 envelopes unflavored gelatin", "2 c. milk", "1 c. sugar", "2 c. sour cream", "2 tsp. vanilla extract", "1 (3 oz.) pkg. each: lemon, orange, lime gelatin"]
["In a bowl, dissolve cherry gelatin in 1 cup boiling water. Add 1/2 cup cold water; stir.", "Pour into 13 x 9 x 2-inch dish coated with nonstick cooking spray.", "Refrigerate until set, but not firm, about 30 minutes.", "In a small saucepan, sprinkle unflavored gelatin over 1/2 cup cold water.", "Let stand for 1 minute.", "Stir in milk and sugar.", "Cook and stir over medium heat until gelatin and sugar are dissolved.", "Remove from heat.", "Whisk in sour cream and vanilla until smooth.", "Spoon 1 2/3 cups creamy gelatin mixture over the first flavored layer.", "Chill until set, but not firm.", "Prepare remaining flavored gelatin as directed for cherry.", "Alternately layer flavored gelatin with creamy gelatin layer, allowing each to set before adding next layer.", "Refrigerate overnight.\tTakes all day to make."]
["cherry gelatin", "boiling water", "cold water", "unflavored gelatin", "milk", "sugar", "sour cream", "vanilla extract", "lemon"]