4 (3 oz.) boxes different Jello
2 pkgs. Knox gelatin
2 c. milk
1 c. sugar
2 tsp. vanilla
1 pt. sour cream
Whipped topping

To each box of Jello, add 1 cup boiling water and half cup of Pepsi. You can use all water if desired. In large bowl, dissolve the 2 packages Knox gelatin, in 1/2 cup water. Boil milk, then add sugar and vanilla. Add milk mixture to the Knox mixture. Mix sour cream until smooth and add to Knox mixture. Leave sitting out. Coat 9 x 13 inch pan with oil. Put first color of Jello into pan. Refrigerate until firm. Then add 1 1/2 cups white mixture to make second layer. When firm add next color of Jello. Continue until all is used. Chill until very firm.