Quick and Easy Chicken Tinga Tacos

1. Heat the oil over medium heat in a large skillet. 
2. Add the onion and sauté for 7 minutes. Add the garlic and cook for another 2 minutes. 
3. Add the chipotles, oregano, cumin, tomatoes, stock, and salt. Bring to a simmer and cook for 5 minutes.
4. Transfer the tomato mixture to a blender and puree until smooth. Return the sauce to the skillet. 
5. Stir in the chicken and cook for 5 minutes over medium heat. Taste and add more salt if needed. 
6. Warm the tortillas on a griddle or pan and add chicken and optional garnishes to make the tacos. Enjoy!