Spicy Chipotle Sweet Potato Soup

Ingredients (10)

• ✓ 2 tablespoons olive oil
• + 1 large yellow onion, chopped add to pantry
• + 3 ½ pounds sweet potatoes, peeled and cut into 2-inch chunks add to pantry
• ✓ 4 ½ cups vegetable broth, or as needed
• + 1 (7 ounce) can chipotle peppers in adobo sauce, drained add to pantry
• + ½ cup heavy cream add to pantry
• + 2 limes, juiced add to pantry
• ✓ salt to taste
• + 1 cup sour cream add to pantry
• + ½ cup chopped fresh cilantro, or to taste add to pantry