Batter Fried Shrimp

medium to large shrimp , cleaned, deveined and butterflied, leaving tail tip intact if possible

large egg

milk

self rising flour , divided

butter , melted

Large pinch of kosher salt

turns of a pepper mill

to 1/2 teaspoon of Cajun seasoning (like Slap Ya Mama ), or to taste, optional

Old Bay seasoning

Deep fryer with fresh vegetable or canola oil