*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
**Nutrient information is not available for all ingredients. Amount is based on available nutrient data.
(-)Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.
Heat olive oil in a large saucepan or Dutch oven over medium heat; cook and stir onion in the hot oil until softened, 3 to 5 minutes. Add sweet potatoes and enough vegetable broth to cover sweet potatoes; bring to a boil. Reduce heat, partially cover saucepan, and simmer until sweet potatoes are tender enough to easily pierce with a fork, about 30 minutes.
Stir chipotle peppers into the sweet potato mixture.
Blend sweet potato mixture with an immersion blender until soup is smooth. Whisk heavy cream and lime juice into soup until smooth and heated through; season with salt.
Serve each portion of soup topped with 2 tablespoons sour cream and a sprinkle of cilantro.