Instructions

1. Step
   In a large pot, melt butter over medium heat and add onions. Cook for about 5 minutes, or until translucent.
2. Step
   Add in diced tomatoes, crushed tomatoes, garlic and vegetable broth.
3. Step
   Bring to a boil, then reduce heat and simmer for 10 minutes.
4. Step
   Remove from heat and add in baking soda and milk.
5. Step
   Using an immersion blender or regular blender, blend until smooth.
6. Step
   Garnish with a drizzle of cream and chopped basil.

Crostini

1. Step
   Preheat the oven to 400°F (200°C). In a small pot, melt butter with garlic powder and parsley (if using). On a parchment-lined baking sheet, place the pieces of bread.
2. Step
   Brush each piece with the melted butter mixture and sprinkle both cheeses evenly on top.
3. Step
   Bake for 4-6 minutes or until the cheese has melted. Serve with the soup.