How to Make It
Heat 2 tablespoons each butter and oil in a large skillet over medium-high until butter melts, 1 to 2 minutes. Add half the garlic and cook, stirring, until garlic just starts to turn golden, about 1 minute. Using a slotted spoon, transfer garlic to a small bowl.
Add half the shrimp to skillet in a single layer; season with ½ teaspoon salt and several grinds of pepper. Reduce heat to medium and cook, undisturbed, until bottoms of shrimp turn pale golden brown, about 2 minutes. Flip shrimp and cook, undisturbed, until just cooked through, 1 to 2 minutes. Transfer to a platter.
Repeat with remaining butter, oil, garlic, shrimp, salt, and pepper. Squeeze lemon over shrimp and top with toasted garlic.