Cibulová kaše (Czech onion porridge)

Instructions

1. Finely slice the onions.
2. Melt the butter in a heavy-bottomed saucepan and cook the onions over low heat for 15 minutes, until soft and golden.
3. Sprinkle with flour and stir for 2 minutes to make a light blond roux.
4. Gradually pour in the milk and water, whisking to avoid lumps.
5. Add the bay leaf, season with salt, pepper and nutmeg.
6. Simmer over low heat for 10 minutes, stirring, until you have a smooth porridge.
7. Remove the bay leaf, adjust the seasoning and sprinkle with parsley before serving hot.