Heat butter and oil in a skillet, add shallots and garlic and cook, stirring occasionally, 5 minutes or until soft.
Add wine to pan and boil until reduced by about half. Cut each scallop into 2 or 3 slices, depending on size.
Add scallops to skillet and cook, stirring occasionally, 2 or 3 minutes or until just turning opaque. Stir in lemon juice, parsley, salt and pepper. Garnish with flat-leaf parsley and serve immediately.