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The “Mud” Prep: If your fillets have a dark line running down the center (the “mud vein”), gently trim it away with a sharp knife. This is where that “earthy” pond taste lives.
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The Buttermilk-Mustard Bath: Whisk together the buttermilk, mustard, and hot sauce. Submerge the catfish in the mixture and refrigerate for 30 minutes. This tenderizes the fish and neutralizes any “fishy” odors.
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The Dredge: In a shallow dish, combine the cornmeal, flour, and spices.
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The Coating: Lift a fillet from the soak, let the excess drip off, and press it firmly into the cornmeal mix. Crucial: Let the breaded fish rest on a wire rack for 10 minutes before frying. This “sets” the crust so it doesn’t fall off in the oil.
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The Sizzle: Heat 1 inch of oil in a cast-iron skillet to 350°F.
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The Fry: Fry the fillets in batches (don’t crowd the pan!) for 3–4 minutes per side. They are done when they are deep golden brown and the meat flakes easily with a fork.
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The Drain: Move them to a wire rack—not paper towels. Resting on a rack allows air to circulate, keeping the bottom crust from steaming and getting soggy.
3 Tips for Fish-Fry Success
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The Mustard Secret: Don’t worry—the fish won’t taste like mustard. The vinegar in the mustard acts as a tenderizer, while the solids act as a “glue” for the cornmeal.
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Temperature Control: If your oil is too cold, the fish will absorb it and become greasy. If it’s too hot, the outside will burn before the inside is cooked. Use a thermometer!.
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The “Peanut Oil” Choice: Many Southerners swear by peanut oil for fish because it has a high smoke point and a faint, nutty aroma that complements the cornmeal.
