Why it works: Buttermilk and flour are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 3,721 recipes. Both carry ethanol, which smells alcoholic, ethereal. The science ↓
Soda Biscuits
Ingredients
Directions
The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare the dough
In a mixing bowl, sift in half the amount of flour along with the baking powder and salt.
Cut in the lard until well mixed.
Dissolve the baking soda in part of the buttermilk and add it to the mixture. Pour in the remaining buttermilk and mix until combined.
Add enough flour to achieve the right dough consistency and knead well, incorporating all scraps.
Shape and bake
On a floured surface, roll out the dough to about ½ inch thick.
Cut with a round cutter and bake in a hot oven at 400°F (200°C) until golden.
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.
-
Buttermilk + flourtop 8% of all pairsSmell alikemoderateCooked together3,721 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Lard
- Cut into the flour to create fat pockets that make the biscuits tender and flaky.
- Buttermilk
- Adds moisture and acidity that react with the leavening to lift the dough.
- Baking soda
- Reacts with the acidic buttermilk to produce carbon dioxide, helping the biscuits rise.
- Baking powder
- Provides additional leavening so the biscuits rise in the oven.
- Flour
- Forms the gluten structure that gives the biscuits their body.
The step that matters
Cut in the lard until well mixed. Fat coated onto flour particles limits gluten formation and creates layers when steam escapes in the oven. Overworking the dough melts or blends the fat, making biscuits dense rather than 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.

Buttermilk Pie12 recipes
White Cake431 recipes
Pound Cake373 recipes
Orange Bundt Cake349 recipes