Recipe straight out of the Vita-Mix Professional Series cookbook:
2 large leeks
1/4 pound bacon, thinly sliced
4 medium potatoes, peeled and diced
1/2 cup whipping cream
1 1/2 cups chicken broth
pinch sea salt
dash freshly ground black pepper
Slice the white part and half the green part of the leek into 1/2 inch pieces. wash them thoroughly and drain. In a large saucepan, fry the bacon until slightly crisp. Add the leeks and saute for 10 minutes. Add the potatoes, cream, and broth. Simmer until the potatoes are tender.
Place one-third of the mixture in the blender. Set the Vita-Mix on VARIABLE. Turn it on and increase the speed to 10. Puree for 15 seconds. (If not using a Vita-Mix, you may have to strain it.)
Return the pureed mixture to the saucepan, combine and serve.