Preheat oven to 425 degrees F.
In a large skillet heat the 2 tablespoons of oil over medium high heat. Add the onion and cook for 5 minutes, until the onion is fragrant and translucent. Next add the chipotle peppers, shredded chicken and cook for an additional 2 minutes, or until the chilies become fragrant. Add ½ cup of the homemade enchilada sauce, and gently simmer for 5 minutes. Season to taste with salt if needed. Set aside to cool while you oil the tortillas.
Place parchment paper on a large cookie sheet. In the microwave, heat the corn tortillas for 60 seconds so that they become soft and pliable enough to roll up.
After the tortillas are warmed up, taking a basting brush oil the tortillas all over with either avocado oil or olive oil. Make sure each tortilla is oiled front, back and all around the edges. We want those taquitos perfectly crispy! Once the tortillas are oiled, it's time to start rolling them up! Place about 1 ½ tablespoons of the chicken filling down the middle, top with another 1-2 tablespoons of the shredded cheese and roll up each taquito. Place the rolled taquitos on the parchment lined baking sheet seam side down.
Bake the taquitos in the hot oven for 8 minutes, turn and bake for an additional 5 minutes, or until perfectly crisp. Serve with sour cream, avocado, salsa, fresh chopped cilantro and any desired toppings!