Why it works: Flour and butter are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Irish Cake
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Preheat the oven to 350°F (175°C).
Make the batter
In a bowl, cream together the butter and sugar.
Add the eggs one at a time, mixing well after each addition.
Stir in the flour, salt, candied orange peel, and Irish whiskey.
Bake and finish
Pour the batter into oblong moulds, filling them nearly full.
Strew the white comfits on top and dust with sugar.
Bake until golden brown and a toothpick comes out clean.
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.
-
Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
-
Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
-
Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
Flour and butter barely smell alike, yet cooks put them together in 124,287 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
- Eggs
- Provide structure and richness as they set and bind the batter together.
- Butter
- Adds fat and tenderness, and creaming it with sugar traps air for a lighter crumb.
- Flour
- Forms the main structure of the cake as its proteins set during baking.
- Sugar
- Sweetens the cake and helps browning, while creaming with butter aerates the batter.
- Candied orange peel
- Adds bright citrus aroma and a chewy, sweet-tart flavour throughout the cake.
- Irish whiskey
- Contributes aroma and flavour, and its alcohol largely evaporates during baking.
The step that matters
Adding the eggs one at a time. Adding eggs gradually and mixing well after each lets them emulsify fully into the creamed butter and sugar. Adding them all at once can cause the batter to curdle and trap less air, leading to a denser cake.
Swap the orange
How well each one fits the dish's main ingredients (flour, sugar, butter, egg):
- Raisinfits better
- Vanillafits better
- Figfits better
- Orangethe original
Fit is the average pairing score against flour, sugar, butter, egg. 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.
More irish cake recipes
You might also like
Orange Bundt Cake349 recipes
Orange Cream Rice Pudding121 recipes
Orange Gelatin100 recipes
Orange Sherbet73 recipesThe 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.