Name: Slow Cooker Curried Squash and Apple Soup
Ingredients: 3 cups fat-free, less-sodium broth; 2 cups chopped onion (about 1 large); 2 teaspoons bottled minced garlic; 1½ teaspoons grated peeled fresh ginger; 1 teaspoon salt; 1 teaspoon red curry powder; ½ teaspoon ground coriander; ½ teaspoon freshly ground black pepper; 2 pounds cubed peeled butternut squash (3 cups); 2 medium apples, cored, peeled, and diced (1 pound, 2 cups)

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).
Ginger + coriandertop 1% of all pairs

Smell alikestrong

Cooked together3,505 recipes

Shared aroma: trans-2-decenal (waxy, orange).
Garlic + coriandertop 3% of all pairs

Smell alikemoderate

Cooked together6,474 recipes

Shared aroma: beta-phellandrene (minty, terpene).
Garlic + butternut squashtop 5% of all pairs

Smell alikestrong

Cooked together476 recipes

Shared aroma: coumarin (sweet, hay).
Coriander + butternut squashtop 5% of all pairs

Smell alikestrong

Cooked together166 recipes

Shared aroma: coumarin (sweet, hay).

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

What each ingredient does

Butternut squash: Breaks down into a tender, thick body that gives the soup its smooth texture.
Apples: Soften during slow cooking, adding natural sweetness and a fruity balance to the spice.
Onion: Softens into the base, adding savory sweetness and body to the broth.
Broth: Provides the cooking liquid that carries the heat and flavor through the soup.
Red curry powder: Supplies the warm, aromatic spice profile that defines the soup's flavor.

The step that matters

Blending in batches. Hot liquid expands when blended, so filling the blender too full or not venting the lid can force steam out and cause burns. Working in portions also gives a smoother puree because the squash breaks down more evenly.

Swap the apple

How well each one fits the dish's main ingredients (onion, garlic, ginger, coriander, pepper, butternut squash):

Limefits better
Avocadofits better
Lemonfits better
Applethe original

Fit is the average pairing score against onion, garlic, ginger, coriander, pepper, butternut squash. 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
Apple	1 medium (182g)	95
Onion	1 medium (110g)	44
Turmeric	1 tsp ground (3g)	9
Black Pepper	1 tsp ground (2.3g)	6
Garlic	1 clove (3g)	4
Ginger	1 tsp grated fresh (2g)	2
Salt	1 tsp (6g)	0
Coriander	not in our table	0
Pumpkin	not in our table	0

Slow Cooker Curried Squash and Apple Soup