Combine dry ingredients: whisk together flour, baking powder, and salt in a bowl.

Mix wet and dry ingredients: add vegetable oil and warm water to dry mixture, stir until shaggy dough forms.

Knead the dough: knead using a stand mixer for about 2 minutes or by hand for 5 minutes.

Let the dough rest: transfer to an oiled bowl, cover, and let it rest for 1 hour.

Portion the dough: divide into 10 equal pieces and shape into balls, resting for another 10 minutes.

Heat the skillet: heat a dry cast iron skillet over medium-high heat.

Roll out the tortillas: roll each ball into a 6-inch round shape.

Cook the tortillas: cook each tortilla for 20-30 seconds on each side.

Store the cooked tortillas: transfer to an airtight container lined with paper towels.