Sweet potato balls

Satsuma imo no goma dango atau nama Melayunya bebola keledek bersalut bijan. 
Got the recipe from here:
http://cookpad.com/recipe/1618370
Ingredients:
Sweet potato (keledek) -3 small ones
sugar - 1 table spoon (I adjusted and add more because my sweet potato were not that sweet)
Fresh Milk or just normal milk- a little
Salt- a pinch
Sesame- 1 pack ( I used both white and black and I didn't really use the whole pack)
flour- 4 tablespoons
water- 6 tablespoons (do adjust according to how soft your potato already is)

Method:
1. Peel the potato skin, cut to small pieces and heat in microwave until soft. (the recipe owner said 3 minutes but it took me more than 5!)
2. Mash the potato and while it's still hot, add sugar and mix. Then add in salt.
3. Add milk .. not too much or it will become too soft for you to shape it into small balls.
4. Shape into small balls and roll them in batter (water+flour)
5. Finally, roll the balls in a bowl of sesame seeds and fry.

(The recipe owner did not mention anything about the amount of oil so I just put oil in the fryer until a little bit more than half of the balls are inside the oil.