Shred the onions. Peel the butternut and sweet potato,wash and cut into cubes.

Add the oil into a sufuria and let it heat. Add the onions and cook till they brown.

Add the sweet potato and butternut and leave them to cook.

Once cooked let it cool for few minutes and blend.

Pour it back into the sufuria,add black pepper and salt to taste. let it boil on low fire

Serve while hot