Peel the baked sweet potato and mash into a 1 cup measure. Throw any extra sweet potato into the pudding or use it for a snack.
Place the sweet potato and all other ingredients except for the chia seeds into a blender or food processor. Puree until very smooth.
Pour half into a medium size bowl and mix the chia seeds in quickly and thoroughly. This is to keep the chia seeds from clumping. Add the rest of the pumpkin mixture and mix very well again to help disperse the chia seeds evenly. Check for sweetness and add more sweetener if you would like.
Let sit for about 20 minutes to give the chia seeds time to soften and pudding to become thicker.