Why it works: Sugar and cream are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 43,450 recipes. Both carry 2,3-butanedione, which smells butter, sweet. The science ↓
Sour Cream Nut 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. The book gives no cooking times either; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.
Make the cake
Preheat the oven to 350°F (175°C).
Beat the eggs and sugar in a bowl until well combined.
Add the sour cream and baking soda, mixing until smooth.
Fold in the sifted flour gradually until just combined.
Divide the batter into two greased cake pans.
Bake the cakes for 25-30 minutes.
Make the filling
Boil 1 cup of sugar with 2 tablespoons of water until it reaches a hair-like consistency.
Remove the sugar mixture from heat.
Add the beaten egg whites to the mixture, mixing until cool.
Flavor the mixture with lemon extract.
Assemble and finish
Spread the filling between the cake layers.
Top the cake with chopped nuts.
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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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
-
Flour + nutstop 13% of all pairsSmell alikemoderateCooked together1,180 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
-
Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + lemontop 17% of all pairsSmell alikemoderateCooked together30,404 recipes
Shared aroma: isobutyraldehyde (malty, green).
Egg and flour barely smell alike, yet cooks put them together in 106,462 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, helping the batter set and bind when baked.
- Sour cream
- Adds moisture, tenderness and a slight tang to the crumb.
- Baking soda
- Reacts with the sour cream's acidity to produce gas that lifts the cake.
- Flour
- Forms the structure of the cake once its proteins set in the oven.
- Sugar
- Sweetens the cake and, when boiled, forms the filling's syrup.
The step that matters
Add the egg whites to the hot sugar syrup. Pouring hot syrup into egg whites while beating cooks and stabilises them into a glossy, smooth filling. Adding the whites to syrup that is too cool or not beaten enough can leave them loose or grainy.
Swap the lemon
How well each one fits the dish's main ingredients (egg, sugar, cream, flour, nuts):
- Raisinfits better
- Vanillafits better
- Coconutfits better
- Lemonthe original
Fit is the average pairing score against egg, sugar, cream, flour, nuts. 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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