You will need two frying pans. Place the mole sauce in one of the frying pans and set over medium low heat. Have a plate covered with paper towels ready.
Meanwhile, add the vegetable oil in the other frying pan and turn the heat to high. Once the oil is hot, turn down the heat to medium and start frying the tortillas in a fast pace, turning once. The tortilla should turn soft but without any excess oil. Place the tortillas over the paper towel-covered plate to absorb the oil. Keep them warm.
After frying all the tortillas, dip them one by one with the help of kitchen tongs (or your hand and a large spatula) into the warm mole sauce, making sure it is completely submerged. This is also a step that’s done quickly, to avoid breaking the tortillas.
Place the tortilla onto a plate and add the chicken filling right at the center.
Fold the tortilla and, with the help of your spatula, place the enmolada on your serving plates. If needed, spoon some more mole sauce over the enmoladas. (I use one plate exclusively to assemble the enmoladas before placing them on the serving dish).
Just before serving, garnish with the crumbed cheese and finely sliced onions.