Wash, peel and cube sweet potatoes and place in a pot with cold water and 1 tablespoon of salt.
Boil potatoes until soft, drain and set aside.
While sweet potatoes are cooking, heat olive oil in a large stock pot or enameled Dutch oven.
Add chopped onion and sauté for about 6 minutes or until the onions are translucent.
Add minced garlic, dried thyme and basil and sauté for a minute longer.
Add tomatoes and liquid.
Cover pot and simmer on medium-low for 20 minutes.
Depending on the brand of tomatoes using, add ½ cup of water to the tomatoes to prevent scorching.
After 20 minutes, add softened sweet potatoes to the soup, along with maple syrup. Stir.
Use an immersion (or standard) blender to puree the soup until smooth.
Taste soup and adjust for seasoning
Serve with croutons or a hunk of crusty bread and enjoy!