Lightly chop parsley and set aside.
Season scallops lightly with salt and pepper.
Heat olive oil and butter in a pan over medium-high heat until butter starts to brown and smell nutty.
Add scallops and sear undisturbed for 90 seconds.
Flip scallops and cook the other side for 30 seconds; then remove scallops to a warm plate.
Lower heat to medium, add capers to the pan and shake gently for 30 seconds.
Add lemon juice to deglaze the pan, cooking for 30 seconds. Taste and adjust seasoning with more lemon juice or salt if desired.
Turn off heat, stir in chopped parsley.
Spoon the brown butter caper sauce over scallops and serve immediately.