Knox Blox
["4 envelopes unflavored gelatin", "3 (3 oz.) pkg. jello", "4 c. boiling water"]
["Pour water over gelatin and jello, stirring well.", "Pour into 9 x 13-inch pan.", "Place in refrigerator until set.", "Cut in squares or other choice of design."]
["unflavored gelatin", "jello", "boiling water"]