Using your hands, knead the mixture into a dough whose texture resembles play-dough. If necessary, add water to the mixture by wetting your hands and kneading. If you add water directly to the mixture it might become too wet and you will either have to let it sit to dry (approx 5-10 minutes) or add more masa.
Pinch of a small portion of dough and roll into a ball, 1-2″ in diameter. Place in a tortilla press and press into a 6″ round tortilla. (You may use a rolling pin or a glass jar if desired.)
Cook on the griddle for 1 minute. Flip and cook again for 1 more minute.
Remove from the heat and keep covered. Serve warm.