Ingredients
Equipment
Method
- Heat the oven to 425°F.
- Arrange the peppers cut side down on one rimmed 18x13-inch baking sheet, and arrange the tomatoes, onion, and garlic on a second sheet; drizzle everything with the olive oil and season with the salt and pepper.
- Roast for 35–45 minutes, swapping the sheets between racks and rotating them halfway through, until the pepper skins are blistered, the tomatoes have collapsed, and the onion and garlic are tender.
- Transfer the peppers to a bowl, cover, and let them steam for 10 minutes, then peel away and discard the skins.
- Squeeze the garlic from its skins into a 4-quart pot, then add the roasted tomatoes, onion, their juices, peeled peppers, broth, and basil; bring to a simmer over medium-high heat, then simmer for 5 minutes.
- Blend the soup with an immersion blender until smooth.
- Stir in the heavy cream and heat over medium-low for 2–3 minutes, until hot but not boiling.
Notes
For the smoothest soup, blend thoroughly after the vegetables and basil simmer together. Refrigerate in an airtight container for up to 4 days; freeze for up to 3 months, though the texture may change slightly after thawing. For a dairy-free version, use unsweetened oat cream in place of the heavy cream.
