Step 1

Heat oven to 400°F. Prep the tomatoes, pepper, onion, and garlic, then toss with 1 to 2 tablespoon oil in a medium bowl until well coated.

Step 2

Spread this mixture on a rimmed baking sheet and roast for 25 minutes. Turn the oven on broil and finish under high heat for 3 to 5 minutes to char the vegetables in spots. Keep a close eye on them.

Step 3

Transfer the roasted mixture to a large saucepan or skillet; add the stock and herbs. Bring to a simmer and allow to reduce for 10 minutes.

Step 4

Using a ladle or measuring cup, carefully transfer everything to a blender, add 2 tablespoons extra-virgin olive oil, and blend until smooth. Taste the sauce and adjust the thickness or seasonings as needed.