Cover the chicken breasts with cold water. Season the water with salt and pepper. Add onion and cilantro.
Bring to a boil and let simmer until center is no longer pink
Roast the tomatoes at 400F for 20-30 minutes
Combine with 1/2 white onion, 1 clove garlic and 1/2 chipotle in adobo
Pulse blend and taste for heat, add more chipotle for more heat
Shred the chicken with two forks
Combine the chicken in a mixing bowl with 2 tablespoons chopped onion, salt, pepper, 2 tablespoons creme fraiche, 2 tablespoons cheese, and 3-4 spoonfuls of the Tomato-Chipotle salsa
Mix well
Heat up tortillas
Add a heaping spoonful of the chicken mixture to each tortilla
Roll tight and secure with a toothpick or skewer
Brush with olive oil or lard
Bake at 400F for 20-30 minutes
For the Basic Guac: crush 2 tablespoons of finely chopped onion using the back of a fork
Add onion to a bowl along with juice of half a lime, 1 avocado, and plenty of salt to taste
Coat the taquitos with Basic Guac and sprinkle with a final layer of cheese and cilantro
Serve with the Tomato-Chipotle salsa