3 packages (3 oz each) flavored jello
4 cups boiling water
In large bowl, combine knox gelatine and jello. Add boiling water and stir until gelatine dissolves. Pour into large shallow baking dish and chill until firm. Cut into squares to serve.
Variations:
Double Decker Blox: Use only three cups of boiling water and stir in 1 cup heavy or light cream.
Fruity Blox: Use only two packages jello. Stir in one can fruit cocktail undrained.