4 (3 oz.) pkg. Jello (orange, lemon, lime, strawberry)
4 env. Knox unflavored gelatin
1 can Eagle Brand condensed milk
1/6 c. sugar
Use 9 x 13 inch pan or dish; spray with Pam or wipe with mayonnaise.
1. Dissolve 1/6 cup sugar with 1 cup boiling water and mix together with condensed milk.
2. Mix 2 envelopes Knox with 1 cup boiling water.
3. Combine milk and Knox mixtures together and set aside (should be about 3 cups).
4. First layer: Combine 1 package Jello with 1/2 envelope Knox and 1 cup boiling water. Pour into 9 x 13 inch dish. Cool and put in freezer for 12-15 minutes.
5. Pour about 1 cup milk mixture over first layer of Jello. Be sure it is cooled.
6. Continue layering alternately with Jello and milk mixture. Each layer will take about 7 minutes in freezer (after first layer). Do not leave too long in freezer or layers will separate. Store in refrigerator; cut into squares to serve.