Put the ribs in a large stockpot and fill with enough cold water to cover. Squeeze the lemons into a bowl and strain the juice into the pot; add the lemon rinds as well (remove any seeds). Add the salt, peppercorns and bay leaves and bring to a boil. Boil until the ribs are slightly soft but not falling apart, about 25 minutes.
Prepare a grill for high heat.
Transfer the ribs to the grill, meatier-side down. Grill for 10 minutes; brush with glaze if you like and then grill another 3 minutes. The finished ribs should be at least 165 degrees F in the center; you don't want to char the meat, but you want it to fall apart.
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