This recipe is best approached in three key stages: preparing the sweet potato rounds, achieving the perfect scallop sear, and creating the quick pan sauce to bring it all together.

Stage 1: Roasting the Sweet Potato Rounds

1. Preheat and Prepare: Begin by preheating your oven to 400°F (200°C). Line a large baking sheet with parchment paper for easy cleanup and to prevent the sweet potatoes from sticking.
2. Slice the Sweet Potatoes: Wash and dry the sweet potatoes thoroughly. There is no need to peel them; the skin adds a lovely rustic texture and contains valuable nutrients. Slice the potatoes into uniform rounds, approximately 1/3 to 1/2-inch thick. The key here is consistency. If some rounds are much thicker than others, they won’t cook at the same rate.
3. Season the Rounds: Place the sweet potato rounds in a large mixing bowl. Drizzle them with 2 tablespoons of the extra virgin olive oil, a generous pinch of coarse sea salt, and a few grinds of black pepper. Use your hands to toss everything together, ensuring each round is lightly coated in oil and seasoning.
4. Arrange and Roast: Spread the seasoned sweet potato rounds in a single layer on the prepared baking sheet. It’s crucial not to overcrowd the pan, as this will cause the potatoes to steam rather than roast. If necessary, use two baking sheets.
5. Cook to Perfection: Roast in the preheated oven for 20-25 minutes, flipping them halfway through the cooking time. The rounds are done when they are tender all the way through (a fork should pierce them easily) and are beautifully caramelized and slightly crispy on the edges. Once cooked, you can keep them warm in a low-temperature oven while you prepare the scallops.

Stage 2: Preparing the Scallops for a Perfect Sear

The secret to a restaurant-quality scallop is a deep, golden-brown crust, which can only be achieved if the scallops are perfectly dry.

1. Thaw Properly (If Using Frozen): If your scallops are frozen, thaw them overnight in the refrigerator. For a quicker method, place them in a sealed bag and submerge them in cold water for about 30-60 minutes. Never use a microwave to thaw scallops, as it will start to cook them unevenly and result in a rubbery texture.
2. The Most Crucial Step – Pat Dry: Once thawed, rinse the scallops under cool water and place them on a plate lined with several layers of paper towels. Use another paper towel to gently but firmly pat the top of each scallop dry. You want to remove as much surface moisture as humanly possible. Let them sit on the dry paper towels for a few minutes to air dry further. Any moisture left on the surface is the enemy of a good sear.
3. Remove the Side Muscle: Check each scallop for a small, rectangular, tough piece of muscle on its side, often called the “foot” or “abductor muscle.” It feels tougher and its fibers run in a different direction than the rest of the scallop. If present, simply peel it off with your fingers and discard it. This muscle becomes unpleasantly chewy when cooked.
4. Season Just Before Cooking: Just moments before they go into the pan, season the scallops generously on both flat sides with coarse sea salt and freshly ground black pepper. If you salt them too early, the salt will begin to draw out moisture, undoing all your hard work of drying them.

Stage 3: Searing the Scallops and Creating the Pan Sauce

This part moves very quickly, so have all your ingredients (butter, garlic, thyme) ready and within arm’s reach.

1. Heat the Pan: Place a large, heavy-bottomed skillet (cast iron or stainless steel is ideal) over high heat. Add the remaining 1 tablespoon of olive oil. You need the pan and the oil to be very hot—the oil should be shimmering and almost at the point of smoking. This intense heat is non-negotiable for creating the Maillard reaction, which is the chemical process that forms the delicious brown crust.
2. Sear the First Side: Carefully place the seasoned scallops in the hot pan, ensuring they have plenty of space between them. Do not overcrowd the skillet; cook in two batches if necessary. Once the scallops hit the pan, do not touch, move, or nudge them for at least 90 seconds to 2 minutes. Let them sit and form that beautiful, deep golden-brown crust.
3. Flip and Add Aromatics: Using tongs, check one scallop. If it has a gorgeous crust, flip all of them over. Immediately reduce the heat to medium-low. Add the 4 tablespoons of unsalted butter, the minced garlic, and the fresh thyme sprigs to the pan. The butter will melt and begin to foam and brown.
4. Baste and Finish: As the butter melts, tilt the pan slightly towards you, allowing the butter to pool. Use a large spoon to continuously baste the scallops with the foaming, aromatic butter sauce. Cook for another 60-90 seconds on the second side while basting. The scallops are done when they are opaque throughout but still slightly translucent in the very center. Be careful not to overcook them, as they will become tough and rubbery. The entire cooking process for scallops is only about 3-4 minutes total.
5. Assemble and Serve: Immediately remove the scallops from the pan to stop the cooking process. To serve, place one perfectly seared scallop on top of each roasted sweet potato round. Spoon a little of the garlic-thyme brown butter sauce from the pan over each scallop. Garnish with a sprinkle of finely chopped fresh parsley or chives and serve immediately.