2 envelopes Knox gelatin
1/2 c. cold water
2 reg. or 1 lg. Jello (any flavor)
1 1/2 c. boiling water

Stir gelatin in 1/2 cup cold water, in bowl until dissolved. Stir Jello and 1 1/2 cup boiling water. Add gelatin mixture and Jello together and pour into 1 x 11 inch glass dish. Place in refrigerator for 20 minutes and cut into cubes.