2 cups white masa harina, such as Masienda
1 1/2 to 2 cups very warm water
Avocado oil, as needed
Add the masa to a medium bowl. Slowly add the water, mixing with your hands, until it is a moldable consistency. It should form a ball but not be sticky. Once the dough has come together, shape into a ball about the size of a ping pong ball. Place the dough ball into a tortilla press and press until flat.
Heat a griddle over medium heat. Brush the hot pan with some oil to coat the pan if needed. Place the tortilla on the griddle and cook until it begins to puff and has a few lightly browned spots, about 1 minute. Flip the tortilla and cook on the remaining side until lightly browned and cooked through, another 1 to 2 minutes. Repeat with the remaining dough.