1. Prepare the Scallops:
- Pat the scallops with paper towels until they are very dry. This is the most crucial step for achieving a good sear and golden crust. Any moisture will steam the scallops instead of searing them.
- Season both sides of the dried scallops generously with kosher salt and freshly ground black pepper.
2. Cook the Scallops:
- Heat a large skillet (preferably stainless steel or cast iron) over medium-high heat until it’s very hot but not smoking. You want a good sizzle when the scallops hit the pan.
- Add 1 tablespoon of unsalted butter to the hot skillet. Let it melt and foam slightly.
- Carefully place the seasoned scallops into the hot pan, ensuring they are not touching each other. If your pan isn’t large enough, cook the scallops in two batches to avoid overcrowding, which can lower the pan temperature and prevent searing.
- Sear the scallops for about 2 minutes on the first side, without moving them, until a beautiful golden-brown crustforms.
- Flip the scallops to the other side and sear for another 1.5 to 2 minutes, or until a similar golden crust forms and the scallops are opaque throughout but still tender. Overcooking will make them rubbery.
3. Make the Garlic Lemon Butter Sauce:
- Once the scallops are cooked, remove them from the pan and transfer them to a clean plate. Tent loosely with foil to keep warm.
- Lower the heat in the skillet to medium.
- Add the remaining 1 tablespoon of unsalted butter to the pan, letting it melt.
- Add the minced garlic to the pan and sauté for about 30 seconds to 1 minute, stirring, until it becomes fragrant. Be careful not to burn the garlic.
- Immediately pour in the juice of 1 fresh lemon. The sauce will sizzle and emulsify slightly.
- Add the fresh thyme sprig (or sprinkle in dried thyme). Stir gently.
- Let the sauce simmer for about 30 seconds to 1 minute, allowing the flavors to meld.
4. Serve:
- Return the cooked scallops to the pan with the sauce for just a few seconds, gently turning to coat them, or spoon the garlic lemon butter sauce generously over the scallops directly on your serving plates.
- Serve immediately for the best taste and texture.