Nigella meet Rachel. She has a Little Paris Kitchen and everything she cooks seems to involve butter. You’ll like her and her fabulous dresses.
2. add a Tbsp flour and whisk
3. add 200ml milk slowly while still whisking (this avoids getting lumps)
4. when the sauce is nice and creamy add a little grated nutmeg
5. mix in half tsp Dijon mustard
6. add salt and pepper to season