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 ↓
Stuffed Onions I
Ingredients
Directions
Prepare
Heat the oven to 180°C (gas mark 4).
Butter a small ovenproof dish.
Put the vegetable stock and white wine in a medium saucepan and bring to a boil.
Cook the onion layers
Trim 5 mm off the tops and bottoms of the onions, cut them in half lengthwise, and remove the brown papery skin.
Gently scoop out most of the onion insides, retaining only the two or three outermost layers.
Separate the outer layers from each other and place a few at a time in the simmering stock.
Cook the onion layers for three to four minutes, until just tender, then drain and let cool slightly (reserve the stock for another use).
Stuff and bake
Grate the tomatoes with a coarse cheese grater, discarding the skins.
In a large bowl, combine the grated tomato pulp with breadcrumbs, feta, parsley, olive oil, garlic, spring onions, salt, and pepper.
Fill each onion layer generously with the stuffing, then pull the sides together to form a fat cigar shape.
Lay the stuffed onions seam-side down in the buttered dish and pour about 75 ml of the reserved stock over them, just enough to cover the bottom.
Bake for 45–50 minutes, or until the onions are soft and lightly coloured and the stuffing is bubbling.
If the onions dry completely before the end of cooking, add more stock.
Drizzle with a little olive oil and serve warm.
Nutrition, whole recipe (rough)
What these numbers assume: 11 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Flour | 1 cup (125g) all-purpose | 455 |
| Olive Oil | 1 tbsp (14g) | 119 |
| Feta Cheese | 1 oz (28g) cheddar | 113 |
| Butter | 1 tbsp (14g) | 102 |
| Onion | 1 medium (110g) | 44 |
| Wine | 2 tbsp cooking wine (30ml) | 25 |
| Tomato | 1 medium (123g) | 22 |
| Black Pepper | 1 tsp ground (2.3g) | 6 |
| Garlic | 1 clove (3g) | 4 |
| Parsley | 1 tbsp chopped fresh (3.8g) | 1 |
| Salt | 1 tsp (6g) | 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).
-
Olive + garlictop 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).
-
Parsley + garlictop 4% of all pairsSmell alikestrongCooked together9,308 recipes
Shared aroma: beta-phellandrene (minty, terpene).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Onions
- Form the edible shell that softens and turns sweet as it bakes.
- Fresh white breadcrumbs
- Absorb tomato moisture and give the stuffing a soft, binding body.
- Feta
- Adds salty, tangy richness that melts into the stuffing as it bakes.
- Tomatoes
- Supply moisture and acidity that keep the stuffing juicy.
- Olive oil
- Carries fat through the stuffing, adding richness and helping it brown.
- Parsley
- Adds fresh, herbaceous aroma that balances the rich feta.
The step that matters
Cook the onion layers only until just tender. Over-cooked layers turn mushy and tear when rolled, while under-cooked layers stay firm and bitter; a brief simmer softens the cell walls enough to fold without breaking.
Swap the clove
How well each one fits the dish's main ingredients (butter, white wine, onion, tomato, parsley, olive, garlic):
- Thymefits better
- Capersfits better
- Basilfits better
- Clovethe original
Fit is the average pairing score against butter, white wine, onion, tomato, parsley, olive, garlic. 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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