Why it works: Bread and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 27,232 recipes. Both carry delta-decalactone, which smells sweet, creamy. The science ↓
Chocolate Sandwiches
Ingredients
Directions
Prepare the bread
Butter the slices of white bread and trim off the crusts.
Cut the bread into the desired shape.
Make the filling
Grate the bitter chocolate and sweeten it with granulated sugar to taste.
Melt a small piece of butter and mix in the chocolate.
Remove from heat and let cool.
If the filling is too thick, moisten it with a little cream before spreading between the slices of bread.
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.
-
Bread + buttertop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
-
Chocolate + creamtop 11% of all pairsSmell alikemoderateCooked together5,466 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Chocolate + sugartop 13% of all pairsSmell alikemoderateCooked together15,404 recipes
Shared aroma: guaiacol (smoky, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Bitter chocolate
- Provides the main flavour and the body of the chocolate filling.
- Butter
- Melts into the chocolate to give the filling a smooth, spreadable texture.
- Granulated sugar
- Sweetens the bitter chocolate to the cook's taste.
- Cream
- Adds moisture to loosen a filling that has become too thick.
The step that matters
Let the filling cool before spreading. Chocolate mixed with melted butter is still warm and loose, and it sets firmer as it cools. Spreading it too early can soak into the bread and make the sandwiches soggy, while cooling lets it hold its shape.
“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.
Chocolate Cream171 recipes
Bread Pudding153 recipes
Soft Ginger Bread85 recipes
Orange Potato Bread80 recipes