4 small (3oz) boxes Jello in different flavors or 2 large (6 oz) packages
1 can sweetened condensed milk
2 envelopes unflavored gelatin (Knox)
Directions
For each flavor, dissolve one box of jello in one cup of boiling water. Pour into a container and chill (overnight is probably best, but I chilled it 3 hours until firm).
After chilling the four flavors, cut them into small blocks. Carefully mix the blocks in a 9 x 13 pan.
In a separate bowl, sprinkle 2 envelopes unflavored gelatin into 1/2 cup cold water. After the gelatin blooms, add 1 1/2 cup boiling water and dissolve. Add the can of condensed milk. Stir and cool. Pour cooled milk mixture over jello and chill overnight.