4 (3 oz.) boxes Jello (cherry, lime, orange, lemon)
1 c. hot water
1/2 c. cold water

The one cup of hot water and 1/2 cup cold water are for each flavor.

WHITE LAYER:

2 c. milk
1 c. sugar
2 pkgs. Knox gelatin dissolved in 1/2 cup cold water
2 c. sour cream
2 tsp. vanilla

Spray 9 x 13 pan with Pam. Dissolve one box of Jello in 1 cup hot water. Add 1/2 cup cold water. Pour into pan and chill until set. Mix white layer. Heat milk 3 to 4 minutes on high in microwave. Must be hot enough to dissolve sugar and Knox gelatin. The Knox gelatin should be dissolved in 1/2 cup cold water while milk is heating to become thick. When the milk is heated, stir in the sugar then the Knox gelatin. If you can see that the Knox gelatin is not fully dissolved, heat another minute until it is. Add the sour cream and vanilla. Stir with wire whip until smooth. Add 1 1/2 cups on first layer of set Jello. Chill until set (about 30 minutes). When you put this layer in, heat water to mix next color. This way it has time to cool before it's poured on white layer. Alternate white and colored layers allowing each to set before adding next. The top layer will be a color. I usually end with cherry.