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Oto

Oto is a Congolese yam dish made with mashed yam, palm oil, pepper, and optional onion, served with hard‑boiled eggs.

From the Recipes Wiki (Fandom) · 5 ingredients
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Why it works: Yam and onion match in chemistry and in kitchens. They rank in the top 9% of all ingredient pairs, and cooks put them together in 106 recipes. Both carry coumarin, which smells sweet, hay. The science ↓

Oto

Ingredients

Directions

Prepare the yam

  1. Peel yam and cut into pieces.

  2. Put into pot, add salt and water, boil till soft.

  3. Drain water and mash yam.

Finish and serve

  1. Grind pepper and onion together and add to oto (optional).

  2. Add palm oil and mix well.

  3. Serve with the hard-boiled eggs.

Nutrition, whole recipe (rough)

247Calories
8 gProtein
19 gFat
12 gCarbs

Counts 5 of 6 ingredients. The other 1 aren't in our nutrition table and add nothing above, so the real totals are higher.

What these numbers assume: 5 portions
IngredientPortion assumedkcal
Olive Oil1 tbsp (14g)119
Egg1 large egg (50g)78
Onion1 medium (110g)44
Black Pepper1 tsp ground (2.3g)6
Salt1 tsp (6g)0
Yamnot in our table0

One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.

Recipe from the Recipes Wiki (Fandom).

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 their aromas overlap, and how often cooks already put them together.

  1. Yam + oniontop 9% of all pairs
    Smell alikestrong
    Cooked together106 recipes

    Shared aroma: coumarin (sweet, hay).

  2. Pepper + oniontop 11% of all pairs
    Smell alikemoderate
    Cooked together68,474 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  3. Yam + peppertop 12% of all pairs
    Smell alikemoderate
    Cooked together111 recipes

    Shared aroma: coumarin (sweet, hay).

  4. Yam + eggtop 32% of all pairs
    Smell alikemoderate
    Cooked together52 recipes

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

  5. Pepper + eggtop 33% of all pairs
    Smell alikelow
    Cooked together50,580 recipes

    Shared aroma: 2-nonenal (fatty, green).

Pepper and egg barely smell alike, yet cooks put them together in 50,580 recipes: they work on texture and structure more than aroma.

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

What each ingredient does

Yam
Starchy base that softens when boiled and mashes into a smooth, thick body.
Palm oil
Adds fat for richness, a smoother texture and a mellow flavour to the mash.

Swap the onion

The recipe marks onion as optional. How well each one fits the dish's main ingredients (yam, pepper, egg):

  1. Sweet potatofits better
  2. Okrafits better
  3. Spinachfits better
  4. Onionthe original

Fit is the average pairing score against yam, pepper, egg. Candidates are from the same food group and used in at least 100 recipes.

“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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