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Ikijumba n'Umutsima

A Rwandan stew of sweet potatoes, corn, beans, onions, garlic, tomatoes, and herbs simmered in oil.

From the Wikibooks Cookbook · 9 ingredients
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Why it works: Sweet potato and beans match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 165 recipes. Both carry damascenone, which smells apple, rose. The science ↓

Ikijumba n'Umutsima

Time15–20 minutes

Ingredients

Directions

Prepare the base

  1. Heat the vegetable oil over medium heat in a large pot.

  2. Add the chopped onion and minced garlic, and sauté until the onion is translucent and fragrant.

  3. Add the diced tomatoes to the pot and cook for a few minutes until they soften and release their juices.

Simmer the stew

  1. Add the diced sweet potatoes to the pot and stir well to coat them with the onion and tomato mixture.

  2. Pour enough water to cover the sweet potatoes.

  3. Bring to a boil, then reduce heat to low and simmer 15–20 minutes until the sweet potatoes are tender.

  4. Add the cooked corn and beans to the pot and stir gently to incorporate them into the stew.

  5. Season with salt and black pepper to taste, adjust seasoning as desired, then simmer for another 5–10 minutes to allow the flavors to meld together.

Serve

  1. Remove from heat and transfer to a serving dish.

  2. Garnish with fresh cilantro leaves if desired.

Nutrition, whole recipe (rough)

441Calories
10 gProtein
15 gFat
73 gCarbs

Counts 10 of 11 ingredients. The other 1 aren't in our nutrition table and add nothing above, so the real totals are higher.

What these numbers assume: 10 portions
IngredientPortion assumedkcal
Potato1 medium (173g) baked161
Olive Oil1 tbsp (14g)119
Corn1/2 cup kernels (82g)77
Onion1 medium (110g)44
Tomato1 medium (123g)22
Clove1 tsp ground (2g)7
Black Pepper1 tsp ground (2.3g)6
Garlic1 clove (3g)4
Cilantro1 tbsp chopped fresh (1g)1
Salt1 tsp (6g)0
Beannot 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 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 their aromas overlap, and how often cooks already put them together.

  1. Sweet potato + beanstop 1% of all pairs
    Smell alikestrong
    Cooked together165 recipes

    Shared aroma: damascenone (apple, rose).

  2. Onion + garlictop 1% of all pairs
    Smell alikestrong
    Cooked together29,058 recipes

    Shared aroma: furaneol (caramel, strawberry).

  3. Beans + tomatotop 1% of all pairs
    Smell alikestrong
    Cooked together2,713 recipes

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

  4. Corn + beanstop 3% of all pairs
    Smell alikestrong
    Cooked together1,211 recipes

    Shared aroma: 2,3-pentanedione (butter, sweet).

  5. Garlic + tomatotop 3% of all pairs
    Smell alikemoderate
    Cooked together14,076 recipes

    Shared aroma: furaneol (caramel, strawberry).

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

What each ingredient does

Sweet potatoes
Break down into soft, tender pieces that give the stew its body and mild sweetness.
Tomatoes
Soften and release juices that add moisture and a fresh acidity to the base.
Onion
Softens and turns sweet and aromatic, forming the flavour foundation of the stew.
Corn
Adds sweetness and a tender bite that holds its shape in the stew.
Beans
Add substance and body, making the stew more filling and textured.

The step that matters

Simmer the sweet potatoes until tender. Sweet potato pieces need enough time in simmering liquid for starch to soften fully. Adding corn and beans or seasoning too early can leave the potatoes firm or cause uneven texture, so cook them until a knife slides through easily.

Swap the clove

How well each one fits the dish's main ingredients (sweet potato, corn, beans, onion, garlic, tomato, pepper):

  1. Cuminfits better
  2. Corianderfits better
  3. Oreganofits better
  4. Clovethe original

Fit is the average pairing score against sweet potato, corn, beans, onion, garlic, tomato, pepper. 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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