[header] How to make mascarpone [title] Fill the bain marie with water, and place on a stove top over high heat. [step] Gas stoves work best. As the pans and water heat up, you may reduce and readjust the heat. 
[title] Add 1 quarter of heavy cream to the top of the bain-marie. [step] Heat, stirring constantly, to a steady temperature of about 180 degrees f (about 82 c).