This is another winner from the Barefoot Contessa and I really love it this time of year when the citrus is wonderful and it goes well with all of the winter vegetables -fennel, arugula, avocado, orange, apples, nuts and dried cranberries.
3 T. good apple cider vinegar
1 t. grated orange zest
2 T. freshly squeezed orange juice
2 1/2 t. Dijon mustard
2 T. maple syrup
sea salt to taste
1/2 t. freshly ground black pepper
2/3 c. olive oil
Whisk together the vinegar, orange zest, orange juice, Dijon, maple syrup, s&p in a bowl. Slowly whisk in the olive oil. I put this mixture in a jar and refrigerate until ready to use.