Prepare Grill – Start by preparing your grill for direct grilling. Target 500 degrees Fahrenheit in the cooking chamber. As you start the grill, place your 10-inch cast iron pan to let it warm up as the grill temperature rises.
Season Scallops -- Season the scallops with seafood seasoning on all sides.
Sear Scallops – Place 1 tablespoon of olive oil in the cast iron pan and wait for it to just start smoking. Place the seasoned scallops in the pan, close the grill, and let them sear for two minutes. Flip the scallops and grill the other side for an additional 2 minutes to get a nice crust on the scallops.
Make Pan Sauce – With the scallops still in the pan, add garlic and wine and gently stir for two minutes to gently deglaze the pan. Add butter and thyme and continue grilling over direct heat for additional two minutes.
Remove – Remove the pan from the grill with high heat gloves and serve immediately.