Pierce the sweet potato with a fork and bake (in the air fryer for 35 mins at 180C OR in the microwave for 5 mins)
When the potato has cooled down peel it and mash it into a bowl.
Add the rest of the ingredients and mix. Take you time to mash the potato until the “batter” is very smooth.
Transfer into a baking tray, add optional chocolate chips if you wish, and bake for 25-27 minutes.
Let it cool down completely before cutting into slices.
Video
Notes
*This is the weight of the potato once has been already baked and with skin removed. (for reference: it is ~2 small or 1 large sweet potato).**I wouldn’t substitute with any other butter. I have tried with peanut butter and the flavour was completely different.