Preheat the oven to 175 ºC
Line and grease a 9" baking pan or a loaf tin
Peel the sweet potatoes and finely if possible.You can get a better result using a food processor or even a spiraliser. Use the finer option and make noodles with the sweet potato. When done, just chop this into small pieces.
Add all the remaining ingredients to the sweet potato and whisk until it is well-mixed. This is how mine looked.
Pour the mixture into the baking tin and bake for 35 minutes.
Check if the cake is done by using a skewer of a clean knife and it comes out clean.