Why it works: Flour and pepper are a kitchen classic. They rank in the top 19% of all ingredient pairs, and cooks put them together in 50,459 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Bacon Gravy Soup
Ingredients
Directions
Make the bacon base
Cook bacon in a pot until crispy.
Remove bacon and crumble it, leaving drippings in pot.
Add flour to drippings and stir to form a roux.
Make the soup
Gradually add water, stirring constantly until thickened.
Season with salt and pepper.
Add crumbled bacon back into soup.
Serve hot.
Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.
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.
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Flour + peppertop 19% of all pairsSmell alikemoderateCooked together50,459 recipes
Shared aroma: isobutyraldehyde (malty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Bacon
- Its rendered drippings provide fat and savory flavor, and the crispy pieces add texture.
- Flour
- Forms a roux with the bacon fat, which thickens the liquid into a gravy-like soup.
- Water
- Forms the liquid base that the roux thickens into a soup.
The step that matters
Adding the water to the roux. Pouring the water in gradually and stirring constantly keeps the flour smooth, so it thickens evenly without lumps.
“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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