Peel the shrimp, setting shells and tails aside. Toss shrimp with 1 tablespoon Creole seasoning, cover & refrigerate while making the sauce.
Heat 1 Tablespoon butter in cast iron skillet. Sauté garlic just until lightly browned. Stir in Chardonnay, Worcestershire and lemon juice. Add water, rest of Creole seasoning, bay leaves, salt, and black pepper. Stir in shrimp shells and tails and bring to a boil. Reduce to a simmer and cook for 30 minutes.
Using a colander, strain sauce from shells into a small saucepan. Bring to a simmer and reduce the sauce base for 8-10 minutes.
Heat 3 Tablespoon butter in a large skillet over high heat. Sauté chilled shrimp. Stir in reduced sauce base, coating all shrimp. Stir in half & half.
Garnish with chopped chives or parsely if desired.