Adding sour cream to blended soup? I found a potato soup recipe which requires blending with a stick blender and adding Creme fraise. I don’t have any Creme fraise, but google tells me sour cream is apparently a fine replacement. I’m wondering when I should add the sour cream to the potato soup, before or after blending? Does it matter that sour cream is thicker than Creme fraise? Also, will this soup be ok to eat for a week as a meal prep? Some websites are saying it won’t reheat well.