4 (3 oz.) pkgs. Jello
4 c. boiling water
2 c. cold water
2 pkgs. unflavored gelatin
1/2 c. boiling water
1 c. milk
1 c. sugar
1 tsp. vanilla
1 pt. sour cream

In separate containers (use empty Cool Whip containers) prepare all 4 packages of Jello using 1 cup boiling water and 1/2 cup cold water for each. Pour 1 Jello into a 9"x13" pan and chill for 30 minutes. NOTE: Correct timing is crucial.

Meanwhile make cream filling. Dissolve unflavored gelatin in 1/2 cup boiling water. Bring milk to boiling point and remove from heat. Add sugar and vanilla to unflavored gelatin and add this mixture to hot milk. Stir in sour cream and whisk until smooth. When 1st Jello layer has set, carefully pour 1 1/4 cup cream filling. Over it evenly allow to set 30 minutes in refrigerator. Continue with layers alternately allowing 30 minutes for each layer. Refrigerate until ready to serve. Serves approximately 18 to 20.