Why it works: Barley and oats match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 224 recipes. Both carry 2-octenal, which smells fatty, green. The science ↓
Muffins
Ingredients
Directions
Prepare
Preheat the oven to 400°F (200°C).
In a bowl, combine the milk, melted fat, syrup, and beaten egg.
In another bowl, sift together the salt, baking powder, and flour using a coarse sieve.
Mix and bake
Combine the two mixtures, stirring lightly without beating.
Pour the batter into muffin tins and bake for 20 to 30 minutes, depending on the size of the muffins.
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.
Photo for illustrative purposes only · Contact us to use it
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.
-
Barley + oatstop 7% of all pairsSmell alikestrongCooked together224 recipes
Shared aroma: 2-octenal (fatty, green).
-
Barley + flourtop 13% of all pairsSmell alikemoderateCooked together582 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Milk + barleytop 14% of all pairsSmell alikemoderateCooked together598 recipes
Shared aroma: ethyl octanoate (fruity).
-
Milk + oatstop 14% of all pairsSmell alikemoderateCooked together2,119 recipes
Shared aroma: 2,3,5-trimethylpyrazine (cocoa, roasted).
-
Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
Milk and flour barely smell alike, yet cooks put them together in 78,219 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Barley flour
- Provides the main structure of the muffins, with a mild, nutty flavour.
- Ground rolled oats
- Adds body and a tender, slightly crumbly texture to the crumb.
- Eggs
- Bind the batter and help set the structure as the muffins bake.
- Baking powder
- Releases gas in the batter to make the muffins rise.
- Milk
- Hydrates the flour and adds moisture and softness to the crumb.
The step that matters
Stir the batter lightly without beating. Overmixing develops gluten in the flour and releases gas from the baking powder too early, which can make muffins tough and dense. Stirring just until combined keeps them tender.
“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.
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.

Oranges in Syrup9 recipes
Barley Muffins6 recipes
Syrup Sauce6 recipes
White Cake431 recipes