Tinga "Sabores Aztecas"

1 kg. / 2 lb of Chicken Breasts.
1 big onion.
3 slices of Chipotle Peppers of Sabores Aztecas.
4 whole peeled tomatoes of Sabores Aztecas.
2 cloves of garlic.
500 ml. / 1 pint of tomato puree.

Liquidize the tomatoes together with the tomato puree, the two cloves of garlic, ¼ of the onion and the chipotle slices. This preparation is fried lightly in a pan with oil until it thickens and then add salt and pepper to the pleasure.
On the other hand we fry half of the onion (finely sliced) in some oil until it gets shiny and crispy.
Once made our sauce, we mix it with the onion.
The chicken cooks in the express pot adding water (until it covers the breasts), ¼ of onion, a clove of garlic and salt to the pleasure, cook for 30 minutes or until the express pot sound is strong enough or begins to smell to chicken.
Once the breasts are cooked, crumble them and mix with our preparation of sauce and onion.
Verify the taste and add salt and chipotle to the pleasure.