Should you happen to go to Motorinos for a clam pizza (tres delish) on 349 E. 12th street...
You're a 5 minute walk from Birdbath Bakery (at 223 1st Avenue)and the best home made marshmallows on the planet. 
I do not say this lightly, especially after 3 days of intensive research and furtive gobbling. 
Birdbath is a 'green' offshoot (one of 5 in the city) of City Bakery 
You can buy a 10-pack ($10) or by the piece ($1) as I prefer for freshness...
I spotted packets of marshmallows at Balthazar but none sold individually. 
I thought I was addicted to French guimauve but last weekend I was converted to the American way. 
Why is it that when you've eaten something all your life you think you own it. Not so. As a candy, marshmallows go back to ancient Egypt when mixed with honey and for medicinal purposes using the marshmallow plant. The 19th century French version of the recipe, called pâte de guimauve (or "guimauve" for short), included egg white meringue and was often flavored with rose water. French candy shop owners used to make it on the premises. La Mere du Famile makes wonderful loops of marshmallow but they are much dryer and less sticky than City Bakery's (they must have a longer shelf life). In 1948 American Alex Doumak invented a way for marshmallows to be manufactured in a fully automated way - extruded in soft cylinders and then cut.
Thank you Wikipedia
Photo by Jacob Margolis/NPRRecipes for the homemade marshmallow abound. NPR has a nice one. Smitten Kitchen and David Lebovitz will show you how to do it yourself.
I don't trust myself around the lava-like marshmallow. I'll stick with picking up a few daily at City bakery and then seeing how long I can keep them in the house (24 hours is tops so far)
Birdbath (but not City Bakery) has nice stocking stuffer 10-packs of small gingerbread men for $5.
Shhh...here's a hot chocolate tip: Trader Joe's for the holidays has a peppermint hot chocolate($4.95) exactly like William Sonoma's hot chocolate ($19.95). TJ's tin is green but the inside is exactly the same yummy chocolate flakes.
I don't trust myself around the lava-like marshmallow. I'll stick with picking up a few daily at City bakery and then seeing how long I can keep them in the house (24 hours is tops so far) 
Birdbath (but not City Bakery) has nice stocking stuffer 10-packs of small gingerbread men for $5. 
Shhh...here's a hot chocolate tip: Trader Joe's for the holidays has a peppermint hot chocolate($4.95) exactly like William Sonoma's hot chocolate ($19.95). TJ's tin is green but the inside is exactly the same yummy chocolate flakes.ENJOY!