Step 1: Build the Flavor Base

• In a large Dutch oven or heavy-bottomed pot, heat olive oil over medium heat until shimmering.
• Add diced onion and cook for 4-5 minutes until softened and translucent (but not browned).
• Add minced garlic and cook for 30 seconds until fragrant, stirring constantly to prevent burning.
• Stir in tomato paste and cook for 1-2 minutes, until it darkens slightly. This caramelizes the sugars in the paste, creating deeper flavor.

Step 2: Simmer the Soup

• Add the canned tomatoes with their juice, breaking up the whole tomatoes with a wooden spoon.
• Pour in vegetable broth, then add dried basil, bay leaf, sugar, salt, and pepper.
• Bring to a gentle boil, then reduce heat to maintain a low simmer.
• Cover partially with a lid and simmer for 15 minutes, stirring occasionally.
• Remove bay leaf.

Step 3: Blend for Silky Smoothness

• For the smoothest results, use an immersion blender to purée the soup directly in the pot until completely smooth.
• No immersion blender? Let the soup cool slightly, then carefully transfer in batches to a regular blender. Remove the center cap from the blender lid and cover with a kitchen towel to allow steam to escape.

Step 4: Finish with Cream

• Reduce heat to low and stir in heavy cream.
• Taste and adjust seasoning if needed.
• Keep warm on low heat while preparing the grilled cheese.

How to Make the Perfect Grilled Cheese Sandwich

Step 1: Prepare the Bread

• Lay out all 8 bread slices on a clean work surface.
• Mix softened butter with garlic powder (if using) in a small bowl.
• Spread butter mixture evenly on one side of each bread slice, making sure to cover all the way to the edges.

Step 2: Add the Cheese

• Flip over 4 slices so the unbuttered sides are facing up.
• Divide shredded cheese mixture evenly among these 4 slices.
• Top with remaining bread slices, buttered side up.

Step 3: Cook to Golden Perfection

• Heat a large skillet (cast iron works best) over medium-low heat. The key is to cook slowly for even browning.
• Place sandwiches in the skillet (work in batches if needed).
• Cook for 3-4 minutes until golden brown on the bottom.
• Carefully flip and cook for another 2-3 minutes until second side is golden and cheese is completely melted.
• Transfer to a cutting board and let rest for 1 minute before slicing diagonally.