4 env. Knox unflavored gelatin
3 (3 oz.) pkg. Jello flavored gelatin
4 c. boiling water

In large bowl, combine Knox and Jello gelatins. Add boiling water and stir until dissolved. Pour into 15 1/2 x 10 1/2 x 1 inch pan. Chill until firm. Cut and ready to eat. Great for small ones because they don't melt.