Cream Sauce with Walnuts

Method

1. Melt the butter in a small pot.
2. Add the flour and stir continuously to create a roux.
3. Add the milk, walnuts, cooking cream, a pinch of salt, pepper, and a handful of Parmesan. Stir to combine.
4. Continue stirring until the mixture thickens.
5. Blend everything with an immersion blender until the walnuts are finely ground.
6. Return the sauce to the heat and cook, stirring, until it becomes creamy and thick.
7. The walnut cream sauce is ready to use, for example to dress pasta.