allrecipes.ru |
nadia |
Ингредиенты (8) |
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1 tablespoon butter |
2 shallots, peeled and finely minced |
60g sorrel leaves, washed and stems removed |
800ml chicken stock |
2 tablespoons plain flour |
1 egg yolk |
125ml double cream or crème fraîche |
salt and freshly ground black pepper to taste |