Peel sweet potatoes and roughly chop into cubes. Place chunks into crock pot and pour in coconut milk.
Cover and cook on HIGH for 3 hours, or until sweet potatoes are soft enough to mash.
Using a potato masher, mash the potatoes to your desired consistency.
Add the rest of the ingredients (minus the topping) into the crockpot and mix well.
In a separate bowl, combine the topping ingredients and stir to coat pecans. Sprinkle over the mashed sweet potatoes, replace the lid, and continue to cook on high for 2 more hours.