Prepare the Ingredients: Peel and dice the sweet potatoes, chop the onion, and mince the garlic.
Sauté Aromatics: In the rice cooker, select the 'sauté' function. Add olive oil, chopped onion, and garlic, cooking until fragrant.
Combine Ingredients: Add the diced sweet potatoes, lentils, vegetable broth, cumin, coriander, salt, and pepper to the rice cooker. Stir to combine.
Cook the Soup: Close the lid and set the rice cooker to the 'soup' or 'porridge' setting. Cook until the lentils and sweet potatoes are tender, about 25-30 minutes.
Blend for Creaminess: For a silkier texture, use an immersion blender to puree a portion of the soup, or transfer it in batches to a blender. Adjust seasoning if necessary.
Serve: Ladle the soup into bowls and garnish with fresh cilantro or parsley, if desired. Enjoy with crusty bread or crackers.
Notes
Serve the soup with a slice of crusty bread and a dollop of butter.