Pre-heat your oven to 350°F / §80°C. Lightly grease your casserole dish.
Place the cubed sweet potatoes into a large pot and cover with water. Bring to a boil, then reduce the heat and simmer for about 15 minutes, until fork tender.
8 cups cubed sweet potato
Drain the sweet potatoes and add back to the same pot. Add the coconut milk, cinnamon, nutmeg, vanilla, salt, and maple syrup. Use a potato masher to mash and mix well.
1 cup full fat coconut milk, ¼ cup maple syrup, 1 teaspoon vanilla extract, ¾ teaspoon salt , 1 teaspoon ground cinnamon, ¼ teaspoon ground nutmeg
Spread the sweet potato mixture into your prepared casserole dish.
In a medium-sized bowl, combine the spelt flour, coconut sugar, coconut oil, and salt. Use a silicon spatula or your fingers to work the oil into the flour and sugar to make a crumble mixture. Add the chopped pecans.
½ cup coconut sugar, 4 Tablespoon coconut oil, ½ cup spelt flour, ¼ teaspoon salt, 1 cup pecans
Evenly sprinkle the pecan crumble over top of the sweet potato mixture.
Place your sweet potato casserole into the oven and bake for 30-40 minutes, until the crumble topping is browned and crisp on top.
Remove from the oven and let stand for 10 minutes before serving.