Ingredients:
In the mixer: Tomato, onion, garlic, and canned chipotle, add little water the consistency of a sauce.
This salsa doesn't need to be too smooth so you can use the lowest speed. If you peel the tomatoes is better, but if you like it a little rustic, you can easily leave them with skin.
Fry the mix in a pot with one spoon of oil, when it starts boiling add salt and oregano, or you can use as well, marjoram, or thyme, or a mix of all of them. If your tomatoes are a little sour, you can add just a bit of sugar.
If you will use it for tacos or fried eggs, it is better a little hotter, but if it is to eat just with tortilla chips it is better not too hot.