Making your own salsa is easier then you think. This arbol chile and roasted tomato salsa only requires a few ingredients and made in a blender. The good news is that you don't need any specialty ingredients, you should be able to find everything at your local supermarket. The chile de arbol is a relatively spicy small Mexican pepper. They are a thin pepper about 2-3 inches long, prized for their bright red color. To cook with dried chiles, such as this one, toast them in a skillet and then add to your salsa. Depending on the preparation, you may want to soak the chile to reconstitute it. This salsa is perfect on tacos, in qusadillas, or plain with some really good tortilla chips.