Heavy Cream
Heavy Cream is a cooking liquid or sauce that can change flavor, body, or acidity quickly. Add it gradually, then simmer, reduce, or finish gently to match the dish.
Identity
Cooking liquid
Add gradually and taste as you go.
Liquids can change seasoning, acidity, aroma, and body quickly. Add them in stages when balance matters, then simmer, reduce, or finish gently to match the dish.
Wikimedia Commons
Reference image
Heavy Cream reference image.

Source: Wikimedia Commons
Used In Recipes
Substitutions
Acceptable
Heavy Cream -> Crème Fraîche
1/2 cup (120ml) heavy cream or crème fraîche
The source lists this as an alternative in the same ingredient row.
Source: Tartiflette