Mash the sweet potato* and mix all other ingredients together with it. Pour into a greased baking dish.
Make the crumb topping by mixing all ingredients together (note the butter should be room temp soft but not melted)
sprinkle the crumb topping on top of the sweet potatoes and bake in a 350 degree oven for approximately 30 minutes or until cooked all the way through.
Serve and enjoy.
Notes:
* some people prefer chunks of sweet potato, I prefer mine very smooth. Mash potatoes according to your preference.
* butter and milk can be replaced with earth balance dairy/soy free butter for a dairy free dish
*salt can be used in place of sea salt
*nuts can be omitted but then there wouldn't be a crunch
*I use Tom Sawyer GF flour, it is a cup for cup replacement