Peel the sweet potatoes and cut into ¾ inch (2cm) cubes. Boil in water for about 10 minutes until done. Drain, and place in a tall cup, allowing to cool slightly.
Halve the pepper and remove the seed with a sharp knife, then chop into pieces and add in with the cooked potatoes. Next, add in the chickpeas and garam masala.
Puree everything with a hand blender (or food processor) until a smooth spread has formed. Season with salt and pepper to taste and serve as a spread or dip.