Carefully Remove The Shells From The Shrimp, Leaving The Tail Sections Intact. Devein And Wash Under Cold Running Water; Pat Dry With Paper Towels. In A Dish Or Bowl, Marinate Briefly In A Mixture Of The Vodka, Salt, And Pepper While You Make The Batter. In A Mixing, Put The Flour And Baking Powder; Gradually Add The Cold Water, Whisking Until Smooth. In A Wok, Heat The 2 Cup Of Oil Until It Reaches 350 Degrees F. Add 1 Tablespoon Of The Hot Oil To The Batter And Stir To Combine. Take A Shrimp By The Tail And Dip It Into The Batter (Do Not Dip The Tail), Then Slide It Into The Hot Oil. Deep-Fry All The Shrimp, A Few At A Time, Until Golden Brown. This Should Take About 2 Minutes For Each Batch. Drain On Paper Towels, And Serve Tails Up, In A Serving Dish, With The Salt/Pepper Mixture For Dipping. Makes 8 To 10 Appetizer Servings. For Dipping: In A Bowl, Combine Coarse Salt And The Peppercorns. In A Dry Frying Pan Over High Heat, Brown The Salt/Pepper Mixture. When Browned Remove And Run The Mixture Through A Grinder.