Preheat oven to 450 degrees.
Add tomatoes, onion and garlic to a sheet pan lined with parchment paper or silicone. Coat in olive oil and a pinch of salt/pepper.
Roast for 20-30 minutes, and then remove the garlic cloves. Roast for another 10-20 minutes, until onions and tomatoes are cooked through.
Add tomatoes, onions and garlic to a blender with broth, ricotta, salt, pepper and basil. Blend until smooth.
Serve and enjoy.
