Step 1: Prepare the Lobster Tails
Using kitchen shears, cut down the center of the top shell of each lobster tail, stopping just before the tail fin. Gently spread the shell apart and carefully lift the meat out, leaving it attached at the tail end. Rest the meat on top of the shell for an attractive presentation.
Step 2: Make the Batter
In a large bowl, whisk together the flour, cornstarch, baking powder, paprika, garlic powder, and salt. Gradually add the cold sparkling water or beer, whisking until a smooth batter forms with no lumps.