Why it works: Flour and egg are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 106,462 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Sponge Cake
Ingredients
Directions
Mix the batter
Combine 2 cupfuls flour with a cupful of water or milk.
Add 2 teaspoonfuls soda and 1 teaspoonful cream of tartar.
Add a pinch of salt and lemon flavor.
Beat eggs for 2 minutes.
Add sugar and beat for 5 minutes.
Add 1 cupful flour with cream of tartar and beat for 2 minutes.
Add water or milk with soda and beat for 1 minute.
Add the rest of flour with salt and beat for 2 minutes.
Bake
Bake in a quick oven for 20 minutes.
Nutrition, whole recipe (rough)
Counts 5 of 6 ingredients. The other 1 aren't in our nutrition table and add nothing above, so the real totals are higher.
What these numbers assume: 5 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Flour | 1 cup (125g) all-purpose | 455 |
| Egg | 1 large egg (50g) | 78 |
| Cream | 1 tbsp (15ml) heavy | 51 |
| Lemon | juice of 1 lemon (48ml) | 12 |
| Salt | 1 tsp (6g) | 0 |
| Water | not in our table | 0 |
One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.
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. See the original page.
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 + eggtop 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).
-
Lemon + eggtop 19% of all pairsSmell alikelowCooked together44,316 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
-
Flour + creamtop 20% of all pairsSmell alikemoderateCooked together30,481 recipes
Shared aroma: acetaldehyde (pungent, ethereal).
-
Egg + creamtop 24% of all pairsSmell alikelowCooked together42,166 recipes
Shared aroma: acetic acid (sour, vinegar).
Flour and egg 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
- Beaten to trap air, providing the structure that lets the sponge rise and hold its crumb.
- Flour
- Forms the gluten network that gives the cake its set structure once baked.
- Soda (in the method)
- Releases gas when combined with acid, helping the batter rise.
- Cream of tartar
- Acid that reacts with soda to produce gas and stabilizes the beaten egg foam.
- Sugar (in the method)
- Adds sweetness and helps stabilize the beaten egg foam while contributing to browning.
The step that matters
Beat the eggs and sugar fully before adding flour. Air beaten into the eggs is the main source of lift in a sponge. If the foam collapses or is overmixed after the flour goes in, the cake turns out dense. Fold gently and keep the timing of each beating step as written.
Swap the lemon
How well each one fits the dish's main ingredients (flour, egg, cream):
- Raisinfits better
- Vanillafits better
- Avocadofits about as well
- Lemonthe original
Fit is the average pairing score against flour, egg, cream. 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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