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How to make grilled artichokes
Bring to a boil one large pot of water (enough to contain all artichokes).
Proceed through step 8 while water is boiling.
Squeeze one lemon quarter in boiling pot to prevent browning.
Add a pinch of salt and sugar to the pot of boiling water to retain flavor. Chop artichoke stems to extend only about 1/2 " (13 mm) from the base.