Wash and peel the sweet potatoes.
Slice into 0.5 – 1 cm thick slices or sticks.
Steam for 5 -10 minutes, until just soft but not mushy, and can be poked with a fork.
Place the sweet potato slices on a baking rack and dry in the oven: Preheat oven 250°F. Bake for 1 hour.
Then dry under the sun for a day, turning occasionally. Bring them indoors at night to avoid moisture.
On the second day, steam the sweet potatoes again for 5 minutes, then dry them in the oven at 250°F for 30 minutes, and continue sun-drying for another full day.
On the third day, steam the sweet potatoes one last time for 5 minutes, then sun-dry for the final day until they reach your desired level of chewiness and dryness.
Store in an airtight container and enjoy these healthy, homemade snacks.