Sweet Potato and Bok Choy Soup

Sweet Potato and Bok Choy Soup
3 Tbsp. Olive Oil
1 medium Onion, diced
2 Leeks, white part only, roughly chopped
2 cloves Garlic, minced
Pinch Red Pepper Flakes
2 medium Carrots, sliced into 1/4-inch thick rounds
2 Celery Stalks, diced
1 large sweet potato, peeled and roughly chopped
2 sprigs Thyme
2 sprigs Parsley
1 tsp. Salt
4 cups water
1 large Bok Choy or 3 Baby Bok Choy, cleaned and torn in pieces
1/2 tsp. fresh ground Pepper

1) Heat the oil in a large pot over medium heat. 

2) Add the onion, leeks, garlic and red pepper flakes and sauté until the vegetables soften, about 3 minutes.

3) Add the carrots, celery, sweet potato, thyme, parsley and salt and sauté 3 minutes. 

4) Add the water and increase the heat to high. Bring the mixture to a boil, then return to a simmer and cook until the vegetables soften, about 30 minutes. 

5) Stir in the bok choy and cook for another 5 minutes. Stir in the pepper and any additional salt if necessary. 

6) Remove the thyme and parsley sprigs and serve.