In a pot, bring the diced sweet potato and water to boil, for about 15 minutes or until it reaches the desired consistency that you like. If it’s too watery, boil longer. If it’s too thick, add some water.
The sweet potato should break down quite a bit after the boiling. If not, you can use the back of the spoon to mash the sweet potato to the desired texture. To make a silky smooth sweet potato puree, you can blend it with a blender. Let cool and serve.
If you have leftover sweet potato puree, transfer it to a container and freeze it. Thaw and reheat using the microwave when ready to feed.
In the United States, sweet potato is also labeled and marketed as yam. But this is not the yam (or taro) that is pale purple in color.