Place the tomatoes in a cast iron skillet and drizzle with olive oil.
Smoke for 2 hours at 165 degrees F.
Remove the tomatoes from the smoker and peel off the skins.
Place ingredients in a large soup pot and heat on medium.
Allow to simmer for 30 minutes before using an immersion blender to puree tomatoes and basil to a smooth consistency.
Notes
Tips and Tricks:
Most soup recipes work equally well in a slow cooker as on the stove. Give it a try!
Make your own soup stock at home. You can then freeze it in a freezer-safe container and pull it out when you need it. You can do this with chicken, beef, or turkey stock**.
In my opinion, using an immersion blender is the easiest way to achieve a really smooth texture to your pureed soup. If you don't have one, you can use a stand blender instead.
Store any leftover soup in the fridge in an airtight container.