Curried Sweet Potato Soup

Eating blended soup is a great way to get in loads of nutritious vegetables. One serving of this soup provides more than your daily recommended intake of beta-carotene.
Ingredients
4 1/4 cups vegetable broth
1 cup diced onion
2 tsp curry powder*
5 cups sweet potatoes, chopped**
1 cup water
1 cup plus 6 T plain nondairy yogurt or tofu sour cream
1/2 cup minced fresh cilantro (optional)
Preparation
Heat 1/4 cup of the broth in a large soup pot over medium-high heat. Add the onion and curry powder and cook and stir for 2 minutes. Add the remaining 4 cups of broth, the sweet potatoes, and the water. Cook for 30 minutes, or until the sweet potatoes are tender. Remove from the heat and let cool slightly.
Transfer one-third of the sweet potato mixture to a blender and process until smooth. Repeat the procedure with the remaining sweet potato mixture, processing it in batches. Return the blended mixture to the pot and bring to a boil. Remove from the heat, add 1 cup of the yogurt, and stir until blended.
Top each serving with 1 tablespoon of the remaining yogurt and garnish with the optional cilantro.
Stored in a covered container in the refrigerator, leftover Curried Sweet Potato Soup will keep for up to 3 days.
PER SERVING: 177 calories; 1.4 g fat; 0.2 g saturated fat; 7.1% calories from fat; 0 mg cholesterol; 4.9 g protein; 37.5 g total carbohydrate; 12.9 g sugar; 4.5 g fiber; 770 mg sodium; 128 mg calcium; 1.8 mg iron; 25.4 mg vitamin C; 13266 mcg beta-carotene; 1.3 mg vitamin E
Additional Tips
*Make your own Curry Spice Blend.
**Leave the skins on for more vitamins and minerals