In a bowl, mix the tortilla ingredients: flour, warm water, baking soda, one egg, lard, and salt.
Use your hands until you get a soft, sticky, uniform dough. Let it rest for 15 to 20 minutes.
After resting, the dough will be easier to manipulate. Make several dough balls and let them rest for 15 to 20 minutes more.
Stretch the dough using a rolling spin, aiming for a round tortilla. True experts can make a final touch with their hands, but it requires some practice.
Place the round tortilla to cook on a hot pan for 2 minutes or until brown. Try to stack tortillas one over the other. This will let them steam each other and stay soft and warm for a longer time.
To fill the tortillas spread the beans, top with grated cheese and Honduran sour cream. Fold the tortilla, and enjoy a classic baleada!