Add flour to a large mixing bowl.
Whisk salt and baking powder (optional) to the flour. Baking powder is optional but will give you a fluffier tortilla. Alternatively, instead of mixing by hand, you may use a stand mixer with a dough hook attachment.
Add lard to flour mixture and cut in with a pastry blender (or if using a stand mixer mix on low. You can also you use your hands if you don't have tools. You do not need to need the dough, only mix.
Slowly add water until a tacky dough forms
Turn out dough onto a well-floured surface. Divide dough into twelve pieces. Roll each piece into a ball about the size of a golf ball.
Heat a griddle on your stove at medium-high heat.
Begin by flouring your rolling pin to prevent dough from sticking. Take a ball of dough and roll it evenly into a 7-8" circle.
Place a tortilla on the hot griddle. The tortilla will puff as it cooks. Cook on each side for about 30 seconds. Flip regularly until you see light brown spots on the heated side.