Steam sweet potatoes over boiling water until just tender, about 10-12 minutes. Set aside.
In a saucepan over medium heat, combine the orange juice, apple juice, maple syrup, dried cranberries, cinnamon, and salt. Bring to a simmer. Slowly stir in the tapioca flour, and raise the heat to medium high, and while stirring, bring to a gentle boil. Remove from heat.
In a large bowl, gently toss the sweet potatoes with maple glaze to coat. Enjoy!