
In a medium skillet, heat the oil and butter over medium high heat. Add the onions and saute for 2 to 3 minutes.
Lower heat to medium. Add the shredded chicken, chipotle pepper, salt and black pepper. Combine all ingredients well.
Cook chicken until it has been reheated through. About 5 minutes.
Remove skillet from heat to prevent the chicken from drying out.
Add about ⅓ cup of chicken to a tortilla and roll tightly to prevent from filling coming out at the ends.
Place the tortilla's seem down on a cooling rack over a baking sheet. Repeat till all the wrappers are made.
Preheat oven at 395 degrees F. Bake on cooling rack (over the baking sheet) for 10 to 12 minutes turning once at halfway point.
Note: Make sure flautas are not touching so that the hot air circulates and crisps all sides evenly.
Heat enough oil in a deep stock pot/Dutch oven or skillet to reach ½ inch up the sides. Heat to 350 degrees F.
Fry flautas, 3 at a time, until golden brown, turning a few times while frying. Drain on paper towels.