INGREDIENTS
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8 cups safflower or other neutral-flavored oil
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3/4 cup plus 3 tablespoons unbleached all-purpose flour
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3/4 cup cornstarch
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Kosher salt and freshly ground pepper
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1 1/4 teaspoons baking powder
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1 1/2 cups club soda or seltzer
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3 pounds skinless freshwater fish fillets (1/2 to 1 inch thick), such as trout, perch, or walleye, cut into 2-inch pieces
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Potato rolls, sliced tomatoes, pickles, potato chips, and lemon wedges, for serving
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