Why it works: Gelatin and cream match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 1,628 recipes. Both carry acetic acid, which smells sour, vinegar. The science ↓
Marshmallows
Ingredients
Directions
Make the syrup
Combine boiling water and gelatin in a deep saucepan; stir until dissolved and keep warm.
Boil sugar and water in another pot until a syrup similar to soft fondant forms.
Pour the syrup over the gelatin mixture, stirring gently until partly cool.
Set and finish
Use a hand mixer until the mixture begins to set.
Pour the mixture into a pan with a removable bottom dusted with cornstarch.
Once cold, cut into squares and roll in cornstarch.
Keep covered to prevent drying out.
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.
-
Gelatin + creamtop 7% of all pairsSmell alikestrongCooked together1,628 recipes
Shared aroma: acetic acid (sour, vinegar).
-
Sugar + gelatintop 7% of all pairsSmell alikemoderateCooked together2,778 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Gelatin
- Forms the elastic gel network that gives marshmallows their structure and chew.
- Sugar
- Provides sweetness and, dissolved into syrup, builds the body of the candy.
- Water
- Dissolves the gelatin and sugar so they can combine evenly into a syrup.
- Cream of tartar
- Acidifies the syrup, helping prevent sugar crystallization for a smoother texture.
The step that matters
Pour the syrup over the gelatin gently and let it partly cool before whipping. Gelatin sets as it cools, so the mixture must be warm enough to stay fluid while blending. Beating too early or too hot can cause uneven setting and a dense, grainy texture. Gentle stirring avoids trapping excess air before the foam is stable.
“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 marshmallows recipes
You might also like
White Cake431 recipes
Pound Cake373 recipes
Orange Bundt Cake349 recipes
Spice Cake344 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.