Preheat your oven to 400°F (200°C).
Cut the red peppers in half and remove the seeds.
Place the peppers on a baking sheet, skin-side up.
Drizzle with olive oil and sprinkle with salt.
Roast the peppers for 25-30 minutes until charred.
In a pot, heat olive oil and sauté the onion until translucent.
Add minced garlic and cook for another minute.
Add roasted peppers to the pot with onion and garlic.
Pour in vegetable broth and bring to a boil.
Simmer for 10 minutes, then blend until smooth.
Stir in heavy cream and season to taste before serving.