Step 1

Preheat oven to 425°. Toss bell pepper, chiles, garlic, shallots, and oil on a rimmed baking sheet to coat; season with salt. Turn garlic cut side down and roast until pepper and chiles are softened and blistered in spots, 10–15 minutes. Let cool.

Step 2

Squeeze garlic cloves out of their skins into a food processor. Add bell pepper, chiles, shallots, vinegar, and honey and process until smooth. Taste chili sauce and season with more salt and vinegar if needed.

Step 3

Do Ahead: Sauce can be made 5 days ahead. Cover and chill.