01 - Pat the shrimp dry thoroughly with paper towels. Season the shrimp generously with 1/2 teaspoon of sea salt and 1/4 teaspoon of freshly ground black pepper.
02 - In a large skillet, heat 2 tablespoons of olive oil and 2 tablespoons of unsalted butter over medium-high heat until the butter begins to foam.
03 - Add the 4 cloves of finely minced garlic to the skillet. Cook for 30 seconds, stirring continuously, until the garlic is aromatic but not browned.
04 - Arrange the seasoned shrimp in a single layer within the skillet. Sauté for 2 minutes per side until the shrimp turn opaque and pink.
05 - Stir in the zest from 1 lemon, 3 tablespoons of fresh lemon juice, and 1/2 teaspoon of crushed red pepper flakes (if desired). Cook for an additional 1 minute, ensuring the shrimp are evenly coated with the sauce.
06 - Remove the skillet from the heat. Stir in the remaining 1 tablespoon of unsalted butter and 2 tablespoons of chopped fresh parsley.
07 - Serve the lemon garlic shrimp immediately, garnished with additional fresh parsley and lemon wedges.