Frogmore Stew: The Lowcountry in One Pot

Name: Frogmore Stew: The Lowcountry in One Pot
Ingredients: 1/2 cup (at least) Old Bay Seasoning; 16 small new potatoes, about 1-inch diameter, rinsed but not peeled (about 3/4 lbs.); 1/2 lb. smoked sausage (kielbasa), cut into 16 1/2-inch thick coins; 2 medium sweet onions, peeled but not trimmed, quartered lengthwise from stem to root; 3 ears fresh corn, shucked and cut into thirds; 16 largest available fresh shrimp, preferably white Carolina shrimp with head on (you may want more depending on size of shrimp); 8 stone crab claws (about 2 lb.)