1/4 cup butter, divided
2 tablespoons chopped garlic
1 pound shrimp, peeled and deveined
1 tablespoon seafood seasoning (such as Old Bay®)
1 tablespoon chopped parsley, or to taste (optional)
1 lemon, cut into wedges, or as needed (optional)
Heat 3 tablespoons butter in a cast iron skillet. Add garlic and cook until fragrant, about 30 seconds.
Toss shrimp with seafood seasoning and place in the skillet. Cook shrimp until pink and opaque, 2 to 3 minutes on each side.
Add 1 tablespoon butter and remove from heat. Garnish with chopped parsley and lemon wedges.