I thought that cucumber sounded like an odd ingredient, but please don’t omit. It adds welcome color, taste and texture to this beautiful soup.
2-3 tablespoons canola oil
2 shallots or 1/3 cup onion, diced
3 cloves garlic, minced
1 small dried chili, whole
6 cups vegetable stock
3 kaffir lime leaves (available in the freezer section of Asian markets)
2 medium-large sweet potatoes, peeled and cut into bite-size dice
2 tablespoons vegan fish sauce
2 tablespoons lime juice
2-3 teaspoons sugar
1/2 of a large red bell pepper, cut into bite size pieces
1/2 cup rich or extra-rich coconut milk
1 medium cucumber, cut into bite size pieces (leave peel on)
Handful of fresh basil leaves, preferably Thai basil leaves
Heat oil until shimmering in the bottom of a soup pot or wok over medium-high heat. Add the shallot or onion, garlic and chili. Stir fry for just a few minutes to release fragrance and soften onion and garlic. Add stock and lime leaves and bring to a boil. Add the sweet potato. Reduce heat to medium and allow soup to simmer until the potato is easily pierced with a fork, about 6-8 minutes. While sweet potato is cooking, add the vegan fish sauce, lime juice and sugar. When sweet potato has softened, and the red pepper and the cucumber. Allow to simmer for only 1-2 minutes, as the vegetables should retain their firmness. Reduce heat to low and add the coconut milk, stirring to incorporate. Adjust seasoning for balance of salt, sweetness and spice. Stir in basil leaves and allow to wilt. Remove whole chili and serve warm. Soup keeps and reheats well.
Source: Veganized from: http://thaifood.about.com/od/thaisnacks/r/pumpkinsoup.htm