DIRECTIONS:

"Grease one 9"" x 13"" pan with butter. Put the lime jello in a bowl; add one cup boiling water. Stir until dissolved. Add 1/2 cup cold water. When cool pour into pan and let set about 45 minutes.

For filling bring 2 cups milk slowly to a boil. Add 1 cup sugar; stir until dissolved. Dissolve 2 envelopes unflavored gelatin in 1/2 cup cold water. Place 1 pint sour cream in a large bowl. Add gelatin to milk. Add gelatin/milk mixture to the sour cream. Add two teaspoons of vanilla; mix slightly with hand beater.

After first layer of jello is set, pour 1-1/2 cups filling for next layer. Allow to set for 45 minutes. Mix next box of jello.

Continue alternating layers of jello and filling, allowing to set 45 minutes after each layer. Top layer will be a jello layer."