2 teaspoons white vinegar (or 1/2 cup cooking white wine)
¼ cup cream
PREPARATION
Add washed spinach to pan and cook till wilted, drain well, cool. If using frozen spinach, thaw the spinach and then squeeze to remove all liquid.
Combine spinach and cheese in bowl. Cut pocket in one side of each chicken fillet, fill with spinach mixture; secure with toothpicks.
Heat oil in pan, add chicken, cook until browned. Stir in sauce , simmer, covered, 25 minutes. Stir cream and parsley, stir until heated
Sauce: melt butter in pan, add flour, stir over heat until bubbling. Remove from heat, gradually stir in stock and vinegar, stir over heat until sauce boils and thicken.