In a large saucepan, heat the oil. Once the oil is hot, cook the sweet potatoes, onion and carrots until onions are fragrant.
Add in the garlic, ginger, hot sauce, turmeric and salt. Cook for around 2 minutes.
Add in the vegetable broth and the lentils. Bring to a boil the reduce heat. Cover and allow to simmer for around 5 minutes.
Add in the coconut milk and cook until the lentils are tender.