Spinach Salad

Directions

1. 1
   For the dressing, begin by whisking together 1 egg yolk with 3 tablespoons Dijon mustard until well incorporated and fluffy.
2. 2
   Next add the extra virgin olive oil in slow steady stream until all the oil is incorporated and the mixture is emulsified.
3. 3
   Slowly add the red wine vinegar, and finish the dressing with the fresh tarragon.
4. 4
   Season with salt and pepper.
5. 5
   Refrigerate if not using immediately.
6. 6
   To assemble the salad, combine the spinach, bacon, mushrooms and toss well.
7. 7
   Drizzle the dressing over the top.