Can I use fresh chiles instead of chiles de árbol?
Chiles de árbol are essential for this recipe's authentic flavor and heat level. They're dried, so they create the smooth texture when boiled and blended. Fresh chiles won't replicate this result.
How spicy is this salsa?
Chiles de árbol are moderately hot (15,000–30,000 Scoville units). Use 15–20 chiles for medium heat, or reduce to 10 for milder salsa.
Can I make this salsa ahead of time?
Yes. Store in an airtight container in the refrigerator for up to 5 days. Salsa can also be frozen for up to 3 months.
Why boil the tomatoes and chiles instead of roasting?
Boiling creates the smooth, velvety texture typical of restaurant salsa. Roasting would add smokiness and char, giving a different flavor profile.