sour cream
US /ˌsaʊər ˈkriːm/
UK /ˌsaʊər ˈkriːm/

1.
crème aigre, crème fraîche
cream that has been fermented by bacteria, giving it a slightly sour taste and thicker consistency, often used in cooking or as a topping
:
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Add a dollop of sour cream to your baked potato.
Ajoutez une cuillerée de crème aigre à votre pomme de terre au four.
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The recipe calls for half a cup of sour cream.
La recette demande une demi-tasse de crème aigre.