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Koshari

A layered Egyptian dish of rice, lentils, pasta, tomato sauce, fried onions, and herbs.

From the Wikibooks Cookbook · 14 ingredients
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Why it works: Lentils and pasta share more aroma than cooks usually use. They rank in the top 1% of all ingredient pairs, and 29 recipes mention both. Both carry 1-hexanol, which smells resin, flower. The science ↓

The recipe

Time10–15 minutes

Ingredients

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

Directions

Prepare the components

  1. Cook the rice in a saucepan according to the package instructions until tender and fluffy. Set the rice aside.

  2. Cook the lentils in a separate pot in boiling water until tender but not mushy. Drain the lentils in a colander and set them aside.

  3. Cook the small macaroni or short pasta in a pot of salted boiling water until al dente. Drain the pasta in a colander and set it aside.

Make the sauce and fried onions

  1. Heat the vegetable oil in a skillet over medium heat.

  2. Add the thinly sliced onion and sauté until golden brown and crispy. Remove the fried onions from the skillet and set them aside on a paper towel to drain excess oil.

  3. Add the minced garlic to the same skillet and sauté for a minute until fragrant.

  4. Add the chopped tomatoes, tomato paste, ground cumin, ground cinnamon, salt, black pepper, and chili powder (if using) to the skillet. Stir well to combine the ingredients.

  5. Simmer the tomato sauce over low heat for about 10–15 minutes, allowing the flavors to meld together and the sauce to thicken slightly.

Assemble and serve

  1. Layer the cooked rice, lentils, and pasta in a serving dish.

  2. Drizzle the tomato sauce generously over the top. Garnish with the crispy fried onions and freshly chopped parsley or cilantro.

  3. Serve the koshari hot.

Recipe from the Wikibooks Cookbook.

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. Lentils + pastatop 1% of all pairs
    Aroma overlapstrong
    Mentioned together29 recipes

    Shared aroma: 1-hexanol (resin, flower).

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

    Shared aroma: furaneol (caramel, strawberry).

  3. Lentils + cumintop 2% of all pairs
    Aroma overlapstrong
    Mentioned together308 recipes

    Shared aroma: coumarin (sweet, hay).

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

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

  5. Tomato + cumintop 2% of all pairs
    Aroma overlapmoderate
    Mentioned together3,272 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

Rice
Forms the fluffy base layer that soaks up the sauce and gives the dish its bulk.
Dried lentils
Provide protein-rich body and a firm, earthy texture that holds up under the sauce.
Macaroni or short pasta
Adds soft, chewy texture and contrast to the rice and lentils.
Chopped tomatoes
Supply acidity and liquid that form the sauce and add moisture to the dish.
Tomato paste
Concentrates tomato flavor and deepens color and body in the sauce.
Onion
Frying until golden builds sweetness and savory depth, and crisp pieces add texture.

The step that matters

Frying the onions until golden brown and crispy. Onions can burn quickly once they darken, turning bitter. Cooking them slowly over medium heat lets sugars caramelize evenly, producing sweet flavor and crisp texture without a scorched taste.

Flavor stand-ins for the cinnamon

How well each one fits the dish's main ingredients (rice, lentils, pasta, tomato, onion, garlic, cumin):

  1. Turmericbetter flavor fit
  2. Corianderbetter flavor fit
  3. Oreganobetter flavor fit
  4. Cinnamonthe original

Fit is the average pairing score against rice, lentils, pasta, tomato, onion, garlic, cumin. 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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