Pour in wine (or broth), add red pepper flakes (if using). Bring to a simmer for 1-2 minutes or until wine reduces by about half and the shrimp is cooked through (don't over cook your shrimp).
Stir in the remaining butter, lemon juice and parsley and take off heat immediately.
Serve over rice, pasta, garlic bread or steamed vegetables (cauliflower, broccoli, zucchini noodles).
Notes
Ensure shrimp are not overcooked to maintain tenderness.