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Make Tartar Sauce: Stir together all ingredients in a bowl and chill, until ready to serve.
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Prepare fish: Whisk together the egg and hot sauce in a wide shallow dish. Stir in the fish strips and let stand at room temperature at least 10 and up to 30 minutes.
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Pour enough oil into a 4 to 5 quart heavy pot to measure 2 inches and heat over medium heat until thermometer registers 350°F (you can use a fry daddy) Stir flour, cornmeal, salt and Cajun seasoning in another wide shallow dish.
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Fry fish; drain fish well in a colander.
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Dredge one fourth of the fish in the flour mixture shaking off excess flour, then fry in oil, stirring occasionally with a slotted spoon, until golden brown and just cooked through,1 1/2 to 2 minutes, remove with slotted spoon and drain on paper towels.
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Repeat until all the fish is fried.