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Yucatecan Grilled Catfish with Pickled Red Onions

A grilled catfish fillet marinated in achiote and spices, served with pickled red onions.

From the Recipes Wiki (Fandom) · 22 ingredients
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Why it works: Onion and catfish work together. They rank in the top 6% of all ingredient pairs, and 175 recipes mention both. Both carry 2-methylbutyraldehyde, which smells malty, chocolate. The science ↓

The recipe

Time3–4 minutes

Ingredients

Contains: fish (auto-detected from the ingredients and method; we can miss things, so check labels)

  • For the Pickled Red Onions
  • For the Achiote-Marinated Catfish

Directions

Pickle the onions

  1. Bring 1 quart water to a boil.

  2. Add onions and cook for 45 seconds.

  3. Drain onions and rinse under cold water.

  4. Place onions in a bowl and add sugar, oregano, pepper, cumin, salt, garlic, and vinegar or lime juice; stir to combine.

  5. Add enough water to barely cover onions.

  6. Cover and refrigerate for several hours, preferably overnight.

Make the marinade

  1. Pulverize achiote seeds in a spice grinder.

  2. Add pepper, cinnamon, coriander, oregano, cloves, and cumin and pulse a few times.

  3. Place mixture in a small bowl and set aside.

  4. Finely chop garlic.

  5. Sprinkle salt over garlic.

  6. Mash and smear garlic and salt with a knife to form a paste.

  7. Add garlic paste and vinegar to spice mixture and mix.

Marinate and grill

  1. Spread about a teaspoon of marinate over each side of fillets.

  2. Place fillets on sheet pan, cover with plastic wrap, and refrigerate 1–2 hours.

  3. Prepare charcoal fire and let coals burn until hot.

  4. Brush fillets with olive oil.

  5. Place on grill over hottest part of the fire.

  6. After 30 seconds, turn fillets 90 degrees and grill 30 seconds more.

  7. Move fillets to cooler part of the fire and cook 2 minutes on that side.

  8. Turn fillets over and cook 3–4 minutes or until fish flakes easily with a fork.

  9. Serve on warm plates topped with pickled red onions and a sprig of cilantro.

Recipe from the Recipes Wiki (Fandom).

This recipe comes from the Recipes Wiki on Fandom and is licensed CC BY-SA 4.0. Our formatting and summaries are shared under the same licence.

Steps grouped into stages for easier reading; the method is the source's own.

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much aroma chemistry they share, and how many recipes mention both.

  1. Onion + catfishtop 6% of all pairs
    Aroma overlaplow
    Mentioned together175 recipes

    Shared aroma: 2-methylbutyraldehyde (malty, chocolate).

  2. Oregano + cumintop 1% of all pairs
    Aroma overlapstrong
    Mentioned together983 recipes

    Shared aroma: estragole (anise, licorice).

  3. Onion + garlictop 1% of all pairs
    Aroma overlapstrong
    Mentioned together29,030 recipes

    Shared aroma: furaneol (caramel, strawberry).

  4. Cumin + cinnamontop 2% of all pairs
    Aroma overlapstrong
    Mentioned together1,103 recipes

    Shared aroma: 4-methoxybenzaldehyde (sweet, anise).

  5. Cumin + garlictop 3% of all pairs
    Aroma overlapmoderate
    Mentioned together5,083 recipes

    Shared aroma: beta-phellandrene (minty, terpene).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Catfish fillets
Provide the main protein, which firms and flakes as the fish cooks.
Red onions
Pickling turns them tangy and crisp, cutting the richness of the grilled fish.
Achiote seed
Gives the marinade its characteristic earthy flavour and deep reddish colour.
Garlic
Adds pungent aroma that mellows and deepens during marinating and grilling.
Cider vinegar or lime juice
Acidity tenderises the fish slightly and brightens the marinade and pickling liquid.

The step that matters

Grilling the fillets over the hottest part of the fire. Searing over intense heat browns the surface and sets the fillets so they hold together, then moving them to cooler coals finishes the centre gently so the fish stays moist instead of drying out before it flakes.

Flavor stand-ins for the garlic

How well each one fits the dish's main ingredients (onion, sugar, oregano, pepper, cumin, cider, cinnamon):

  1. Gingerbetter flavor fit
  2. Thymebetter flavor fit
  3. Clovebetter flavor fit
  4. Garlicthe original

Fit is the average pairing score against onion, sugar, oregano, pepper, cumin, cider, cinnamon. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).

“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.

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