Főzelék (vegetables in flour-thickened purée)

Instructions

1. Peel and dice the onions finely, then cut the courgettes or green beans into 2 cm pieces.
2. Heat the oil in a large saucepan and cook the onions for 5 minutes until translucent.
3. Add the flour and stir for 2 minutes to make a blond roux without burning it.
4. Off the heat, sprinkle in the sweet paprika, then gradually pour in the cold water while whisking to avoid lumps.
5. Add the vegetables and the bay leaf, then simmer gently for 20 minutes until tender.
6. Stir in the sour cream and vinegar, adjust the salt and pepper, then sprinkle with chopped parsley before serving.