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 ↓
Fresh Roasted Tomato and Pepper Soup
Ingredients
Directions
Roast the vegetables
Turn broiler on high, adjust rack to 3 inches.
Wash and halve all the roasting vegetables and place cut side up in a deep roasting pan.
Prepare garlic for roasting by cutting off the top and slightly exposing each clove, then toss with vegetables.
Drizzle lightly with olive oil, and sprinkle sparingly with raw sugar.
Place under broiler to roast for 20 minutes or until everything becomes blistered and blackened.
You may need to adjust the rack and time, or do in batches, removing and replacing vegetables as needed.
Make the puree
Discard liquid from the pan, remove the garlic cloves, and puree everything in a blender; this may need to be done in batches as well.
Set the puree aside; I do not strain it, as I like all the texture and color, but you could if you want.
Make the soup
Warm the chicken stock on the stovetop.
Place sliced onion in a pan with a small amount of olive oil to caramelize.
Stir until golden and gooey; add garlic at the very end so it does not burn.
In a large, heavy-bottom soup pot, melt butter and add flour to make a roux; stir and cook until dark brown and aromatic, about 10 minutes.
Whisk in the heated chicken stock; when mixed, add the tomato puree, heavy cream, and basil.
Warm slowly, then finally add the caramelized onion and garlic.
Garnish with pecorino cheese, grated with a large grater.
Nutrition, whole recipe (rough)
Counts 15 of 16 ingredients. The other 1 aren't in our nutrition table and add nothing above, so the real totals are higher.
What these numbers assume: 15 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Flour | 1 cup (125g) all-purpose | 455 |
| Chicken | 100g cooked | 165 |
| Olive Oil | 1 tbsp (14g) | 119 |
| Cheese | 1 oz (28g) cheddar | 113 |
| Butter | 1 tbsp (14g) | 102 |
| Cream | 1 tbsp (15ml) heavy | 51 |
| Sugar | 1 tbsp (12.5g) granulated | 49 |
| Onion | 1 medium (110g) | 44 |
| Red Onion | 1 medium (110g) | 44 |
| Red Bell Pepper | 1 medium (119g) | 31 |
| Yellow Bell Pepper | 1 medium (119g) | 31 |
| Orange Bell Pepper | 1 medium (119g) | 31 |
| Tomato | 1 medium (123g) | 22 |
| Garlic | 1 clove (3g) | 4 |
| Basil | 5 leaves fresh (2.5g) | 1 |
| Soup | 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.
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.
-
Onion + garlictop 1% of all pairsSmell alikestrongCooked together29,058 recipes
Shared aroma: furaneol (caramel, strawberry).
-
Tomato + olivetop 1% of all pairsSmell alikemoderateCooked together15,539 recipes
Shared aroma: 3-hexenal (apple, fruity).
-
Garlic + olivetop 2% of all pairsSmell alikemoderateCooked together25,665 recipes
Shared aroma: linalool (floral, citrus).
-
Tomato + garlictop 3% of all pairsSmell alikemoderateCooked together14,076 recipes
Shared aroma: furaneol (caramel, strawberry).
-
Pepper + clovetop 5% of all pairsSmell alikestrongCooked 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
- Fresh tomatoes
- Provide the main body, sweetness and acidity of the soup when roasted and pureed.
- Bell peppers
- Add sweetness and a roasted, smoky depth as they blister and blacken under the broiler.
- Butter and flour
- Form a roux that thickens the soup and adds a toasted, nutty flavour.
- Heavy cream
- Adds richness and fat, giving the soup a smoother, rounder mouthfeel.
- Garlic
- Becomes sweet and mellow when roasted, adding aroma to the soup base.
The step that matters
Make the roux. Cooking the butter and flour until dark brown toasts the flour for deeper flavour and thickens the soup. Stirring constantly prevents scorching, which would leave a bitter taste.
Swap the orange
How well each one fits the dish's main ingredients (tomato, pepper, onion, garlic, olive, sugar, clove):
- Avocadofits better
- Limefits better
- Cherryfits better
- Orangethe original
Fit is the average pairing score against tomato, pepper, onion, garlic, olive, sugar, clove. 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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