aerated candy that originated as a versatile medicinal syrup and ointment; it was made from root sap of the marsh mallow (Althaea officinalis), sugar, and egg white.
The modern marshmallow candy is made from corn syrup, dextrose, gelatine, and egg albumen. A mixture of these ingredients is heated to around 240º F (115º C), whipped to twice or three times its original volume, and flavoured.
Finished marshmallow ranges in consistency from chewy to semi-liquid. The firmer candy is shaped into the traditional bite-sized “pillows” dusted with rice flour or powdered sugar before packaging; these are sometimes used as a garnish in cooking and are popularly toasted on sticks over open fires. More elastic marshmallow is often coated with chocolate. The softest marshmallow is used as a base for icings, fudges, and puddings, and as a topping for ice cream.
The Joy of Cooking ingredients are:
3 T gelatin (“gelatin of 250 bloom” from a professional outlet)
1/2 C cold water
2 C sugar
then
3/4 C light corn sirup (their spelling)
1/2 C water
1/4 t salt
2 T vanilla
MM Cream is for cooking
MM Fluff is for sandwiches with peanutbutter.
The problem is you can usually buy the MM Cream anywhere but MM Fluff isn’t sold everywhere across the USA. I used to have it mailed to me; I think, I hope, I’ve outgrown that now.
Oh, I’m gonna keep using these #%@&* codes 'til I get 'em right.
Mallow: from the ME malwe, from OE mealwe, from L malva.
Meaning - any of a genus (Malva, family Malvaceae) of herbs with palmately lobed or dissected leaves, showy flowers and a fruit in the shape of a disc.
Poirot grew vegetable marrows, not mallows. As far as I’ve been able to gather, vegetable marrows are big, tough, tasteless squashes. Given Poirot’s usual fastidiousness about food and wine, I always wondered why he chose that particular hobby. Maybe it was Christie’s joke, referring to Sherlock Holmes’s hobby of keeping bees after his retirement.
It sounds to me like, with the original plant extract gone, the modern marshmallow is no different from a merengue, except for the moisture. It’s just beat up egg white and sugar.