Pat the scallops dry with paper towels
Remove the side muscle if present
Season lightly with salt and pepper
Heat a skillet over medium-high heat
Add a small amount of oil with a high smoke point
Place scallops in the pan without crowding
Sear for 1.5 to 2 minutes without moving them
Flip the scallops
Add butter if desired
Cook the second side for 1 to 2 minutes until opaque and lightly firm
Remove from the pan immediately
Serve right away