Bake, boil, or steam the sweet potato until very soft.
Mash until completely smooth (no lumps). Let it cool slightly.
Add, salt and baking powder.
Add flour gradually.
Add olive oil.
Mix to combine.
Knead for 2–3 minutes until smooth. The dough should be soft and not sticky.
If sticky, add a bit more flour, if dry/cracking, add a teaspoon of water.
Cover and let rest for 15–20 minutes.
Divide into 8 pieces (or more for smaller tortillas).
Roll each piece into a ball.
Roll out into thin circles 9-inch (23cm) diameter (as thin as possible without tearing).
Heat a dry pan over medium-high heat. Cook each tortilla for a few seconds per side.
You’re looking for light golden spots, slight puffing, no crisping.
Stack cooked tortillas and cover with a clean towel immediately.