A bain-marie is a method of cooking using one pot filled slightly with water with a second pot layered on top. The water should not reach the second pot, but the steam will gently heat it and allow the ingredients in the second pot to slowly melt with less chance of burning. If you don't have a nested pot like this, you can use a glass bowl that's base fits in the first, water holding pot.
Keyword Dairy Free, Gluten Free, Vegan, Vegetarian