Why do we saute onions and peppers before put them in Chiles sauces?

You're absolutely right! Sauteing onions and peppers before adding them to a chili sauce is a common practice, and it's not just for flavor. There are several reasons why it's done:

1. Flavor Development:

* Maillard Reaction: The browning that occurs when onions and peppers are sauteed triggers the Maillard reaction, a chemical process that creates hundreds of flavorful compounds, contributing to a richer, more complex taste in your chili sauce.

* Caramelization: The sugars in onions caramelize when sauteed, adding a sweet and savory depth to the sauce.

* Enhanced Flavor: Sauteing brings out the natural sweetness in peppers and the pungent, savory notes in onions, complementing the chili flavors.

2. Texture:

* Softening: Sauteing softens the onions and peppers, making them more palatable and easier to digest.

* Breaking Down Cell Walls: The heat breaks down the cell walls of the vegetables, releasing more of their flavor and aroma into the sauce.

3. Preventing "Raw" Flavors:

* Raw Onions and Peppers: Raw onions and peppers can be harsh and overwhelming in a chili sauce. Sauteing mellows out their raw flavors and allows them to blend seamlessly with the other ingredients.

4. Consistency:

* Thickening: The sauteed vegetables release some of their moisture, helping to thicken the sauce slightly and create a more desirable texture.

Not Always Necessary:

While sauteing is a popular method, it's not always essential. You can add raw onions and peppers to your chili sauce if you prefer a less cooked, slightly crunchier texture. However, sauteing them generally results in a more rounded, flavorful, and well-balanced sauce.

Tips for Sauteing:

* Low and Slow: Saute on low heat to prevent burning and ensure even cooking.

* Fat is Key: Use a good amount of fat (like oil or butter) to facilitate browning and prevent sticking.

* Time it Right: Saute until the onions are translucent and the peppers have softened but still retain some bite, about 5-7 minutes.

By sauteing your onions and peppers, you're not only adding flavor but also contributing to a more harmonious and satisfying chili sauce experience!