Name: Louisiana Shrimp Gumbo
Ingredients: 1/2 cup butter, margarine, or oil; 2/3 cup flour; 2 cups chopped onions; 1 cup chopped celery; 1 cup chopped green bell pepper; 4 cloves garlic, minced; 1/2 cup sliced green onion tops, divided; 1/4 cup chopped fresh parsley; 2 bay leaves; 1 teaspoon salt; 1/2 teaspoon ground black pepper; ground red pepper; 2 quarts hot chicken broth or water; 2 pounds raw shrimp, peeled and deveined; 3 to 4 cups hot cooked rice; file powder

Why it works: Onion and garlic 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 ↓

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.

Onion + garlictop 1% of all pairs

Smell alikestrong

Cooked together29,058 recipes

Shared aroma: furaneol (caramel, strawberry).
Celery + parsleytop 1% of all pairs

Smell alikestrong

Cooked together6,810 recipes

Shared aroma: 4'-methylacetophenone (bitter almond).
Pepper + parsleytop 2% of all pairs

Smell alikestrong

Cooked together34,122 recipes

Shared aroma: 4'-methylacetophenone (bitter almond).
Garlic + parsleytop 4% of all pairs

Smell alikestrong

Cooked together9,308 recipes

Shared aroma: beta-phellandrene (minty, terpene).
Pepper + clovetop 5% of all pairs

Smell alikestrong

Cooked together17,451 recipes

Shared aroma: ethyl octanoate (fruity, wine).

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

What each ingredient does

Flour: Thickens the broth when cooked with fat into a dark roux.
Butter: Provides fat for the roux and adds richness to the broth.
Onions: Soften and add sweetness and savory body to the base.
Shrimp: Supplies the main protein, cooked briefly at the end so it stays tender.
File powder: Adds earthy flavor and thickens the gumbo when stirred in at serving.

The step that matters

Darkening the roux. Flour and fat must be stirred over medium-low heat until dark brown. Too little browning leaves a raw, pasty taste, while scorching gives a bitter flavor, so the roux needs constant attention.

Swap the clove

How well each one fits the dish's main ingredients (butter, flour, onion, celery, pepper, garlic, parsley):

Thymefits better
Marjoramfits better
Capersfits better
Clovethe original

Fit is the average pairing score against butter, flour, onion, celery, pepper, garlic, parsley. 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.

Ingredient	Portion assumed	kcal
Flour	1 cup (125g) all-purpose	455
Rice	1 cup cooked (158g) white	206
Chicken	100g cooked	165
Olive Oil	1 tbsp (14g)	119
Butter	1 tbsp (14g)	102
Shrimp	100g cooked	99
Onion	1 medium (110g)	44
Green Onion	1 medium (110g)	44
Green Bell Pepper	1 medium (119g)	31
Chili	1 tsp (2.7g)	8
Celery	1 stalk (40g)	6
Black Pepper	1 tsp ground (2.3g)	6
Garlic	1 clove (3g)	4
Bay Leaf	1 leaf (0.6g)	2
Parsley	1 tbsp chopped fresh (3.8g)	1
Salt	1 tsp (6g)	0
Water	not in our table	0

Louisiana Shrimp Gumbo