At One Place

What is a Marshmallow made of?

What is a Marshmallow made of?
Sugar syrup whipped full of air and held there by gelatin, which comes from animal collagen.

The name is a fossil. The original confection was made from the mucilage of the marsh mallow plant, Althaea officinalis, whipped with sugar and egg white and sold as a throat remedy; no marsh mallow has been involved since the late nineteenth century, when gelatin replaced it. Gelatin is hydrolysed collagen extracted from skin and bone, mostly pork and beef, which is why marshmallows are not vegetarian and why kosher and halal versions have to use fish gelatin or a plant gum. Toasting works because the sugar at the surface caramelises and the gelatin network softens at the same time, giving a crisp shell around a molten centre.

Component by component

Every material is a choice, and the third column is the constraint that drove it.
Part Material Why that material
foam air, roughly half the volume The air is the product; everything else exists to trap it and hold the shape once it stops being whipped.
stabiliser gelatin, from boiled pig skin or cattle hide Gelatin sets into a gel just below room temperature and melts just above body temperature, which is exactly the melt-in-the-mouth window.
sweetener sucrose with glucose syrup or invert sugar The syrup stops the sucrose crystallising, which would turn the foam gritty within a day.
dusting corn starch and icing sugar The cut faces are sticky; a dry powder stops the pieces welding back into a block in the bag.
vegetarian version agar, carrageenan or whipped egg white in place of gelatin Plant gels set and melt at different temperatures, which is why vegetarian marshmallows toast and squash differently.

Other food and drink objects

Common questions

What is a Marshmallow made of?
Sugar syrup whipped full of air and held there by gelatin, which comes from animal collagen.
What is the foam of a Marshmallow made of?
Air, roughly half the volume. The air is the product; everything else exists to trap it and hold the shape once it stops being whipped.
What is the stabiliser of a Marshmallow made of?
Gelatin, from boiled pig skin or cattle hide. Gelatin sets into a gel just below room temperature and melts just above body temperature, which is exactly the melt-in-the-mouth window.

Related pages

Sources

  1. Official vendor product documentation — At One Place

How these figures are compiled and checked