I start by removing the little side muscle (it’s chewy) and giving each scallop a gentle rinse. Then I pat them completely dry using paper towels. Season lightly with salt and pepper just before cooking.
I melt 1 tablespoon of butter in a hot skillet over medium-high heat. Working in batches (so as not to crowd), I place the scallops in a single layer and cook for about 2–3 minutes per side, until they’re golden brown and just opaque in the center. I then remove them and keep warm.
With scallops out, I add the 2 tablespoons of butter to the same pan. I stir in the minced garlic and cook it until fragrant (about 1 minute). Then I whisk in lemon juice, season with salt and pepper, and swirl the pan to emulsify the sauce. Finally, I return the scallops briefly to coat in the sauce.