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Mongolian Beef Sandwiches

A sandwich of marinated flank steak with onions, serrano chiles, cabbage, bell peppers, carrots, served on pita bread with black bean aioli.

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Why it works: Garlic and onion match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 29,058 recipes. Both carry furaneol, which smells caramel, strawberry. The science ↓

Mongolian Beef Sandwiches

Timeat least 4 hours refrigerated

Ingredients

Directions

Marinate

  1. Marinate the steak in a bowl with oils, soy sauce, wine, garlic, scallions and black pepper. Let stand at least 4 hours refrigerated.

  2. Drain the beef in another bowl and reserve 12 larger slices for satays.

Cook and serve

  1. In a hot wok, coat with oil and stir-fry the sliced onions and minced serrano chiles.

  2. Add the beef and cook until rare.

  3. Add the vegetables. Check for seasoning.

  4. Serve with pita bread and black bean aioli.

Nutrition, whole recipe (rough)

809Calories
36 gProtein
44 gFat
63 gCarbs
What these numbers assume: 14 portions
IngredientPortion assumedkcal
Beef100g cooked250
Sesame1 tbsp (14g)120
Olive Oil1 tbsp (14g)119
Pita Bread1 slice (30g) white79
Onion1 medium (110g)44
Red Onion1 medium (110g)44
Red Bell Pepper1 medium (119g)31
Green Bell Pepper1 medium (119g)31
Wine2 tbsp cooking wine (30ml)25
Carrot1 medium (61g)25
White Cabbage1 cup shredded (89g)22
Soy Sauce1 tbsp (15ml)9
Black Pepper1 tsp ground (2.3g)6
Garlic1 clove (3g)4

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. Garlic + oniontop 1% of all pairs
    Smell alikestrong
    Cooked together29,058 recipes

    Shared aroma: furaneol (caramel, strawberry).

  2. Sesame + oniontop 4% of all pairs
    Smell alikestrong
    Cooked together2,192 recipes

    Shared aroma: gamma-nonanolactone (coconut, sweet).

  3. Canola oil + sesametop 4% of all pairs
    Smell alikemoderate
    Cooked together201 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

  4. Sesame + garlictop 5% of all pairs
    Smell alikestrong
    Cooked together2,000 recipes

    Shared aroma: furaneol (caramel, strawberry).

  5. Pepper + cabbagetop 5% of all pairs
    Smell alikemoderate
    Cooked together4,081 recipes

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

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

What each ingredient does

Flank steak
Provides the meat that is sliced thin and cooked quickly until rare, so it stays tender.
Soy sauce
Adds salty, savory depth to the marinade and helps season the beef.
Garlic
Adds pungent aroma that mellows and sweetens as it cooks.
Red onions
Add sweetness and soften as they stir-fry with the chiles.
Serrano chiles
Add heat and a sharp, fresh aroma to the stir-fry.

The step that matters

Cook the beef until rare. Thin slices cook in moments, and overcooking toughens the muscle fibers and makes flank steak chewy. Removing it at rare keeps it tender.

Swap the cabbage

How well each one fits the dish's main ingredients (canola oil, sesame, sauce, wine, garlic, pepper, onion):

  1. Broccolifits better
  2. Spinachfits better
  3. Shallotfits better
  4. Cabbagethe original

Fit is the average pairing score against canola oil, sesame, sauce, wine, garlic, pepper, onion. 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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