Prepare the sweet potato and place into the Varoma dish. Add steaming water to Thermomix bowl and set Varoma into position.
Steam sweet potatoes 25 min/Varoma/speed 3.
Drain Thermomix bowl and set potatoes aside to cool completely before proceeding.
Place yeast, remaining water and coconut sugar into the Thermomix bowl and warm 2 min/37°C/speed 1.
Add cooked sweet potatoes, butter and eggs and blend 10 sec/speed 5.
Add salt and flour and mix 6 sec/speed 6.
Knead 3 min/Interval Remove from bowl and bring together by hand on a floured bread mat.
Wrap and prove until doubled.
Divide dough into rolls and place onto a baking tray, not touching.
Cover and allow to rise again until rolls are just touching while you preheat the oven to 180°C.
Bake 18 minutes until golden and then brush with melted butter immediately on removing from the oven.
With lots more butter of course!