Seven Layer Jello Salad
["4 assorted pkg. Jell-O", "1 1/2 c. boiling water for each", "2 c. milk", "1 c. sugar", "2 envelopes unflavored gelatin, dissolved in 1/2 c. cold water", "1 pt. sour cream", "2 tsp. vanilla"]
["Dissolve 1 package of Jell-O in bowl with boiling water.", "Pour into greased 9 x 13-inch pan.", "Refrigerate to set.", "Bring milk to boil.", "Add sugar.", "Add the unflavored gelatin, dissolved in cold water.", "Mix well.", "Add sour cream and vanilla.", "Mix well.", "Cover first layer with sour cream mixture (1 1/2 cups).", "Refrigerate until set.", "Repeat with 3 packages Jell-O and boiling water. Alternate layers of Jell-O with sour cream mixture.", "Let each layer set before adding the next layer."]
["O", "boiling water", "milk", "sugar", "unflavored gelatin", "sour cream", "vanilla"]