1 (3 oz.) pkg. Jello - cherry or strawberry
1 (3 oz.) pkg. Jello - lemon
1 (3 oz.) pkg. Jello - orange
1 (3 oz.) pkg. Jello - lime

For each package of Jello you'll use 1 cup boiling water and 1/2 cup cold water.

FILLING:

Boil 2 cups milk and 1/2 cup sugar. Set aside. Dissolve 2 packages of Knox gelatin in 1/2 cup cold water. Add to milk mixture. Cool. Add 1 pint sour cream and 2 teaspoons vanilla.

Alternate four layers of Jello with three layers of filling. Use 1 1/2 cups of filling per layer. Refrigerate each layer until firm before starting next layer.