Forgetting Afikoman

If you said birkat ha'mazon at the seder but had forgotten to eat the afikoman, you must:
  • Wash your hands,
  • Say ha'motzi,
  • Eat at least 1.3 fl. oz. (39 ml, or 1/6 cup) of matza,
  • Say birkat ha'mazon again, and then
  • Drink the third cup of wine.