Wisk the ingredients for the dressing in a bowl.
Chop the shallot and the walnuts coarsely. Put the spinach in a bowl. Sprinkle the dressing over the spinach and season with salt and freshly ground pepper.
Add the walnuts, the chopped shallot and the blueberries to the spinach salad. Crumble the Bettine goat’s cheese plain or honey over the salad.
TIP: This salad is also delicious for lunch.