Creamy Tomato Basil Soup with Grilled Cheese Dunkers

Why You’ll Love This Recipe

• Silky, deeply flavored tomato-basil soup balanced with a touch of cream.
• Thick-cut grilled cheese dunkers with a shattering, buttery crust and gooey center.
• Weeknight-friendly yet dinner-party worthy—done in under an hour.
• Uses pantry tomatoes for consistent results year-round.

Grocery List

• Produce: 1 medium yellow onion, 1 small carrot, 3 garlic cloves, 1 bunch fresh basil.
• Dairy: Unsalted butter, heavy cream, sharp cheddar, Gruyère, Parmesan.
• Pantry: Olive oil, canned whole peeled tomatoes (42 oz total), low-sodium chicken or vegetable broth, tomato paste, kosher salt, black pepper, red pepper flakes, sugar.

Full Ingredients

For the Creamy Tomato-Basil Soup

• 2 tbsp extra-virgin olive oil
• 1 tbsp unsalted butter
• 1 medium yellow onion, diced (about 1 1/2 cups)
• 1 small carrot, peeled and diced (about 1/2 cup)
• 3 garlic cloves, minced
• 2 tbsp tomato paste
• 42 oz canned whole peeled tomatoes, with juices (1 x 28-oz can + 1 x 14.5-oz can), ideally San Marzano
• 2 cups low-sodium chicken or vegetable broth
• 1 tsp kosher salt, plus more to taste
• 1/2 tsp freshly ground black pepper
• 1/4 tsp red pepper flakes (optional)
• 1 tsp granulated sugar (optional, to balance acidity)
• 1 cup loosely packed fresh basil leaves, divided (save a few for garnish)
• 1/2 cup heavy cream, divided (1/4 cup for soup; 1 tbsp per bowl for swirl)

For the Thick-Cut Grilled Cheese Dunkers

• 8 slices sturdy sourdough or country bread, 3/4-inch thick
• 6 tbsp unsalted butter, softened
• 10 oz shredded cheese total: 7 oz sharp cheddar + 3 oz Gruyère (about 2 1/2 cups)
• Pinch of kosher salt (optional)

For Finishing & Serving

• 1/2 cup finely grated or shaved Parmesan
• Fresh basil leaves, torn
• Freshly ground black pepper

Step-by-Step Instructions

Step 1: Prep the aromatics and bread

Dice the onion and carrot, and mince the garlic. Tear the basil leaves and reserve a small handful for garnish. Shred the cheeses and toss them together. Lay out 8 slices of thick-cut bread and spread the softened butter evenly on the outside of each slice (butter touches the pan). Keep the unbuttered sides facing up for filling later.

Step 2: Build the soup base

In a large pot or Dutch oven, heat 2 tbsp olive oil over medium heat until shimmering. Add the onion, carrot, and 1/2 tsp salt. Cook, stirring often, until the vegetables are soft and translucent, 6–8 minutes. Stir in the garlic and cook 30 seconds. Add the tomato paste and cook, stirring, until it darkens to brick red and smells sweet, about 1 minute.

Step 3: Add tomatoes and broth; season

Pour in the canned tomatoes with their juices and use a spoon to break them up. Add the broth, black pepper, red pepper flakes (if using), and sugar (if using). Bring to a simmer, then reduce heat to maintain a gentle simmer at 190–200°F (88–93°C). Partially cover and cook for 20 minutes, stirring occasionally.

Step 4: Add basil and blend

Stir most of the basil into the pot during the last 5 minutes of simmering to preserve its fresh flavor. Remove from heat. Blend the soup with an immersion blender until velvety-smooth, or carefully blend in batches in a countertop blender (vent the lid, cover with a towel, and blend on low to avoid steam buildup).

Step 5: Finish the soup

Return the blended soup to low heat. Stir in 1/4 cup heavy cream and 1 tbsp butter. Taste and adjust seasoning with more salt and pepper as needed. Keep warm on the lowest setting while you make the sandwiches.

Step 6: Assemble the grilled cheese

Preheat a large skillet or griddle to medium-low heat, about 325°F (165°C). Divide the shredded cheeses among 4 slices of bread (unbuttered sides), about 2 1/2 oz per sandwich. Top with the remaining slices, buttered side facing out. Lightly sprinkle a pinch of salt on the outside if desired for extra crunch.

Step 7: Griddle to golden and melty

Place the sandwiches on the preheated skillet. Cook 3–4 minutes per side, adjusting heat to keep the color a deep golden brown. For maximum melt, cover the pan loosely with a lid for the last minute. Transfer to a cutting board and rest 1 minute to set the cheese.

Step 8: Slice dunkers and serve

Cut each sandwich into 3 thick dunkers (about 1-inch wide) with a serrated knife. Ladle the hot soup into warm bowls. Swirl 1 tbsp heavy cream into each bowl, shower with Parmesan, and garnish with torn basil and a crack of black pepper. Serve immediately with the grilled cheese dunkers for dipping.

Pro Tips

• Toast the tomato paste until it turns deep brick red—this concentrates savory flavor and sweetness.
• Keep the soup at a gentle simmer (not a rolling boil) for a brighter color and cleaner tomato flavor.
• Thickness check: If too thick, add a splash of hot broth; if thin, simmer uncovered 3–5 minutes more.
• Low-and-slow for grilled cheese prevents scorching and gives the cheese time to fully melt.
• No immersion blender? Blend in batches and vent the lid to safely release steam.

Variations

• Roasted Tomato Upgrade: Roast 2 lb plum tomatoes at 425°F (220°C) with olive oil and salt for 25 minutes; add with the canned tomatoes for extra depth.
• Spicy Arrabbiata: Swap red pepper flakes for 1–2 tsp Calabrian chili paste and finish with extra basil.
• Vegan-Friendly: Use olive oil instead of butter, oat or cashew cream in place of heavy cream, vegan Parmesan, and plant-based cheese on a dairy-free buttered bread.

Storage & Make-Ahead

Soup stores well: cool, then refrigerate up to 4 days or freeze up to 3 months. For best texture, add the cream when reheating rather than before freezing. Reheat gently over medium-low, thinning with broth as needed. Grilled cheese dunkers are best fresh, but you can assemble the sandwiches up to 2 hours ahead and refrigerate, then cook just before serving. To re-crisp leftover dunkers, warm in a 375°F (190°C) oven for 6–8 minutes.

Nutrition (per serving)

Approximate: 960 calories; 52g fat; 75g carbohydrates; 10g fiber; 37g protein; 1,550mg sodium. Includes about 1 1/2 cups soup and one grilled cheese sandwich cut into dunkers. Actual values will vary based on specific brands and bread size.