Why it works: Orange and lemon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 10,634 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓
Chocolate Filling
Ingredients
Directions
Make the chocolate icing
Put two cups of white sugar in a pan with half a cup of hot water and boil until it becomes a clear thick syrup.
Pour the hot syrup over the whites of three well-beaten eggs, beating continuously.
Stir in one cup of grated chocolate and flavor with vanilla.
Assemble the cake
Grate coconut over the icing between the layers and on the cake.
Cover each layer and the top with icing, then sprinkle thickly with grated pineapple.
Cover each layer with icing, then with stemmed strawberries, add more icing, then the cake; only icing on the top layer.
Make the orange icing
Combine two oranges, juice and rind, juice of one lemon, one and a quarter pounds of confectioner's sugar, and whites of two eggs.
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 |
|---|---|---|
| Chocolate | 1 oz (28g) semisweet | 155 |
| Egg | 1 large egg (50g) | 78 |
| Orange | 1 medium (131g) | 62 |
| Sugar | 1 tbsp (12.5g) granulated | 49 |
| Lemon | juice of 1 lemon (48ml) | 12 |
| 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.
-
Orange + lemontop 1% of all pairsSmell alikestrongCooked together10,634 recipes
Shared aroma: 3-hexenal (apple, fruity).
-
Sugar + chocolatetop 13% of all pairsSmell alikemoderateCooked together15,404 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Chocolate + orangetop 16% of all pairsSmell alikemoderateCooked together928 recipes
Shared aroma: 2,3-butanedione (buttery, creamy).
-
Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Egg + lemontop 19% of all pairsSmell alikelowCooked together44,316 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
Sugar and lemon barely smell alike, yet cooks put them together in 53,532 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
- White sugar
- Boiled into a thick syrup that sweetens and gives the icing body.
- Eggs
- Whites beaten with hot syrup to form a stable, spreadable icing structure.
- Grated chocolate
- Stirred into the icing to add flavor and richness.
- Confectioner's sugar
- Dissolves smoothly into the orange mixture, adding sweetness and body.
- Oranges
- Juice and rind add acidity and bright citrus aroma to the icing.
- Lemon
- Juice adds acidity that brightens the sweetness of the icing.
The step that matters
Pouring the hot syrup into the beaten whites. The hot syrup partly cooks and stabilizes the egg whites into a glossy, spreadable icing. Pouring it in a thin stream while beating continuously prevents scrambling and keeps the foam from collapsing.
Swap the lemon
How well each one fits the dish's main ingredients (sugar, chocolate, egg, orange):
- Vanillafits better
- Lemonthe original
- Figfits about as well
- Cherryfits about as well
Fit is the average pairing score against sugar, chocolate, egg, orange. 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 chocolate filling recipes
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.
Orange Bundt Cake349 recipes
Lemon Cake228 recipes
Chocolate Cream171 recipes
Lemon Ice147 recipes