Ribbon Salad
["2 (1/4 oz. each) pkg. unflavored gelatin", "2 1/2 c. cold water, divided", "2 c. milk", "1/2 c. sugar", "2 c. sour cream (1 pt.)", "2 tsp. vanilla", "1 (3 oz.) pkg. lime flavored gelatin", "1 (3 oz.) pkg. orange flavored gelatin", "1 (3 oz.) pkg. lemon flavored gelatin", "1 (3 oz.) pkg. cherry or raspberry flavored gelatin", "4 c. boiling water, divided"]
["In small bowl, soften unflavored gelatin in 1/2 cup of the cold water; set aside.", "In small saucepan, bring milk to a boil. Remove from heat.", "Add sugar immediately and stir to dissolve. Add sour cream, vanilla and softened gelatin mixture to the hot milk and beat until smooth and creamy.", "Set mixture aside but do not refrigerate."]
["unflavored gelatin", "cold water", "milk", "sugar", "sour cream", "vanilla", "lime flavored gelatin", "orange flavored gelatin", "lemon flavored gelatin", "cherry", "boiling water"]