sweet potato lentil soup for the crock pot

http://pinchofyum.com/crockpot-sweet-potato-lentils  The link is where I found this--it is quite tasty. I am placing it here to note changes for myself--

INGREDIENTS

• 3 large sweet potatoes, diced (about 6 cups)
• 3 cups vegetable broth
• 1 onion, minced
• 4 cloves garlic, minced
• 2 teaspoon each ground coriander, garam masala, and chili powder NOTE: me-use only 1/2 tsp chili
• ½ teaspoon salt
• 1½ cups uncooked red lentils (masoor dal)
• 1 can coconut milk
• 1 cup water  Eowyn adds some fresh spinach at end

INSTRUCTIONS

1. Place the sweet potatoes, vegetable broth, onion, garlic, and spices in a crockpot. Cook on high for 3 hours, until vegetables are soft.
2. Add the lentils and stir once. Replace the lid and cook on high for an additional 1½ hours.
3. Stir in the coconut milk and as much water as needed to get the right consistency.