This restaurant-style recipe features tender pork tenderloin seasoned with fresh sage and smothered in a rich and nutty brown butter sauce. The pork is first seared in a hot skillet to create a crispy crust, then finished in the oven until it's cooked through. The brown butter sauce is made by melting butter in a skillet until it turns golden brown and nutty, then adding garlic, sage, and a touch of lemon juice for added brightness. The result is a decadent and flavorful dish that's perfect for a special occasion or a romantic dinner for two.