Name: Fusion Ketchup
Ingredients: 8 fluid ounces no-salt-added tomato sauce; 6 fluid ounces no-salt added tomato paste; 1 1/2 tablespoons malt vinegar; 2 teaspoons low sodium soy sauce; 1/4 teaspoon onion powder; 1/8 teaspoon ground oregano

Why it works: Tomato and oregano are a kitchen classic. They rank in the top 2% of all ingredient pairs, and cooks put them together in 2,767 recipes. Both carry 2-hexenal, which smells green, leafy. The science ↓

Fusion Ketchup

Ingredients

8 fluid ounces no-salt-added tomato sauce
6 fluid ounces no-salt added tomato paste
1 1/2 tablespoons malt vinegar
2 teaspoons low sodium soy sauce
1/4 teaspoon onion powder
1/8 teaspoon ground oregano

Directions

Thoroughly mix all the ingredients together.
Store refrigerated in a covered jar.

Nutrition, whole recipe (rough)

83Calories

3 gProtein

0 gFat

17 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

Ingredient	Portion assumed	kcal
Onion	1 medium (110g)	44
Tomato	1 medium (123g)	22
Soy Sauce	1 tbsp (15ml)	9
Oregano	1 tsp dried (1.8g)	5
Vinegar	1 tbsp (15ml) distilled	3
Malt	not in our table	0

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.

Tomato + oreganotop 2% of all pairs

Smell alikemoderate

Cooked together2,767 recipes

Shared aroma: 2-hexenal (green, leafy).
Tomato + oniontop 8% of all pairs

Smell alikemoderate

Cooked together20,633 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Onion + oreganotop 11% of all pairs

Smell alikemoderate

Cooked together3,449 recipes

Shared aroma: coumarin (sweet, hay).
Vinegar + oniontop 14% of all pairs

Smell alikemoderate

Cooked together18,226 recipes

Shared aroma: acetic acid (sour, vinegar).
Tomato + saucetop 15% of all pairs

Smell alikelow

Cooked together5,469 recipes

Shared aroma: ethanol (alcoholic, ethereal).

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

What each ingredient does

No-salt-added tomato sauce: Provides the main body and tomato flavour of the ketchup.
No-salt-added tomato paste: Adds concentrated tomato flavour and thickness to the sauce.
Malt vinegar: Adds acidity that brightens the flavour and helps preserve the sauce.

Swap the oregano

How well each one fits the dish's main ingredients (tomato, sauce, malt, vinegar, onion):

Garlicfits better
Tarragonfits better
Capersfits better
Oreganothe original

Fit is the average pairing score against tomato, sauce, malt, vinegar, 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.