Why it works: Pork and onion are a kitchen classic. They rank in the top 10% of all ingredient pairs, and 18,214 recipes mention both. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Fantastic Pork Fajitas
Ingredients
Directions
Heat oil in large nonstick skillet over medium-high heat. Stir-fry pork, onion and green pepper 4-5 minutes, until pork is lightly browned and onion tender.
Roll up pork mixture in flour tortillas and serve with salsa.
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.
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Pork + oniontop 10% of all pairsAroma overlapmoderateMentioned together18,214 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + peppertop 11% of all pairsAroma overlapmoderateMentioned together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Pork + peppertop 16% of all pairsAroma overlapmoderateMentioned together22,121 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + flourtop 17% of all pairsAroma overlapmoderateMentioned together32,460 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Pepper + flourtop 19% of all pairsAroma overlapmoderateMentioned together50,459 recipes
Shared aroma: isobutyraldehyde (malty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Pork loin
- Provides the main protein, and browning it adds savory flavor.
- Onion
- Adds sweetness and aroma as it softens in the pan.
- Green bell pepper
- Adds crisp-tender texture and fresh, slightly bitter flavor.
- Vegetable oil
- Conducts heat and keeps the pork and vegetables from sticking.
- Flour tortillas
- Wrap the filling and hold it together for eating.
- Salsa
- Adds moisture and acidity to the filled tortillas.
The step that matters
Stir-frying the pork over medium-high heat. High heat browns the thin pork strips through the Maillard reaction, which builds flavor. Crowding the pan or cooking too long dries the strips out and steams them instead of browning them.
Flavor stand-ins for the onion
How well each one fits the dish's main ingredients (pork, pepper, flour):
- Capsicumbetter flavor fit
- Potatobetter flavor fit
- Turnipbetter flavor fit
- Onionthe original
Fit is the average pairing score against pork, pepper, flour. 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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