Rinse turkey necks under cold water to clean them.

In a large pot, fill with water, about 4 quarts, and bring it to a boil.

Add the seafood boil seasoning mix to the boiling water. (Add more or less depending on your taste preferences and the specific seasoning mix used).

Stir in granulated onion, granulated garlic, and kosher salt. 

Drop onions, lemon, orange, and jalapeño into the pot.

Add garlic cloves, and any optional spices you'd like to include for extra flavor.

Add turkey necks to the pot and allow the water to return to a boil.

Reduce the heat to a simmer and let necks cook until they are tender. This usually takes at least two hours.

Meanwhile, place a skillet or frying pan over medium-high heat. Add the sliced smoked sausage to the pan and allow them to sear until golden brown, about 2-3 minutes. Once the sausages are browned, remove them from the skillet and set them aside.

Once necks are almost done, at about the 2 hour mark, add potatoes and browned sausages to the pot.

Continue simmering until the potatoes are cooked and necks tender, about 30 minutes more.

Then, turn off the heat and add corn. Let it sit for 10 minutes on the warm stovetop, or until corn is cooked through.

When everything is cooked, strain the contents of the pot and transfer the turkey necks, vegetables, and sausages to a serving platter. Serve immediately.