4 small or 2 large boxes red Jell-O
2-1/2 cups boiling water (do not add cold water)
Stir boiling water into gelatin. Dissolve completely. Pour mixture slowly into a 13 x 9 inch pan. Chill at least three hours. Jigglers will be firm after 1 hour, but may be difficult to remove from pan.
Cutting Jigglers: Dip bottom of pan in warm water 15 seconds to loosen gelatin. Cut shapes with heart shaped cookie cutters.