1. In a large bowl, whisk together the flour, salt, and baking powder.
2. Gradually mix in the warm water and oil until a dough forms.
3. Knead the dough on an unfloured surface for about 3 minutes until smooth.
4. Cover with a damp towel and let rest for 30 minutes.

1. Divide the dough into 6 to 12 pieces, depending on desired tortilla size.
2. Roll each piece into a ball, then flatten into a 25-30.5 cm circle on a lightly floured surface.
3. Preheat a cast-iron skillet over medium-high heat.
4. Cook each tortilla for 15 to 30 seconds per side until lightly charred.

Keep cooked tortillas warm by placing them between a folded towel until ready to serve.