How to Make Tomato Soup with Garlic and Sage Croutons

Why You’ll Love This Tomato Soup with Garlic and Sage Croutons

I still remember the first time I made homemade croutons. I was maybe twenty-two, living in a tiny apartment in LA, and I’d just burned a frozen pizza so badly the smoke alarm went off. My roommate suggested we just have soup instead. Canned tomato soup, saltines. It was fine. But then she pulled out some stale bread, butter, and garlic, and made these little golden cubes in the oven. And I sat there, watching her, thinking, wait, that’s all it takes?

That moment changed how I thought about soup forever. Because here’s the thing about this tomato soup with garlic and sage croutons it’s not complicated. It’s not fussy. But it feels like you did something special. The soup itself is velvety and rich, with just a hint of heat from the red pepper flakes. And the croutons? They’re crispy, garlicky, and perfumed with fresh sage. They stay crunchy until the very last spoonful, which honestly feels like a small miracle.

This is the kind of meal you make on a Tuesday when you need a hug in a bowl. It’s also the kind of meal you serve to friends when you want them to think you spent hours in the kitchen. Spoiler: you didn’t. It takes about 45 minutes, start to finish. And most of that is hands-off oven time for the croutons.

This tomato soup with garlic and sage croutons has become my go-to comfort food. It’s creamy without being heavy. It’s savory with a little sweetness from the tomatoes. And the croutons? They’re the star of the show, no question.

Ingredients for Tomato Soup and Croutons

Let’s talk about what you need. The ingredient list is short, which I love. You probably have most of this stuff already.

For the croutons:

• Firm Italian bread (or sourdough for a California twist)
• Unsalted butter
• Fresh garlic, minced
• Fresh sage leaves, chopped
• Shredded Parmesan cheese
• Salt
• Nonstick cooking spray

For the soup:

• California olive oil
• Garlic cloves, minced
• Salt
• Crushed red pepper flakes
• Canned crushed tomatoes (two 28-ounce cans)
• Vegetable broth, low-sodium
• Fresh basil, packed and chopped
• Heavy cream
• Freshly ground black pepper

One thing I want to say about the tomatoes. Yes, fresh summer tomatoes are beautiful. But canned crushed tomatoes are actually perfect for this soup. They’re already cooked down, so they’re sweet and concentrated. No peeling, no seeding, no drama. I buy the good ones from Trader Joe’s or Whole Foods. San Marzano style if I can find them.

The sage is non-negotiable for me. It’s earthy and a little peppery, and it pairs so well with the garlic. If you’ve only ever used dried sage, fresh will blow your mind. But more on that later.

How to Make Garlic and Sage Croutons

Okay, let’s start with the croutons. Because honestly, they’re the reason you’re here, right? This tomato soup with garlic and sage croutons is only as good as those crispy little cubes.

First, preheat your oven to 375°F. Lightly coat a baking sheet with nonstick cooking spray. Cut your bread into ½-inch cubes. Don’t stress about perfect uniformity, but try to keep them close to the same size so they cook evenly.

Spread the bread cubes in a single layer on the baking sheet. Bake them until they’re dry and just starting to brown at the edges. This takes about 7 to 10 minutes. You’re not trying to fully toast them yet. Just dry them out a bit so they can soak up all that garlic butter later.

While they’re baking, mix together the melted butter, minced garlic, chopped sage, Parmesan, and salt in a small bowl. The smell at this point is incredible. That garlic hitting the warm butter, the sage releasing its oils. It’s the kind of smell that makes your stomach growl.

Transfer the baked bread cubes to a medium bowl. Pour the butter mixture over them and toss well. You want every cube to be coated. Don’t be shy with the tossing.

Return the coated croutons to the baking sheet. Bake until golden brown and crispy, about 5 to 10 more minutes. Keep an eye on them. They go from golden to burnt fast. You want them to be a deep, warm gold with slightly darker edges.

Remove them from the oven and let them cool on the sheet. They’ll continue to crisp up as they cool. Don’t eat them all before the soup is ready. I’m serious. I’ve done it. It’s embarrassing.

How to Make Creamy Tomato Soup

While the croutons are doing their thing in the oven, you can start the soup. It comes together fast, which is the whole point.

In a large pot, combine the California olive oil, minced garlic, salt, and crushed red pepper flakes. Heat over medium heat, stirring, until the garlic is fragrant. This takes about 1 minute. Don’t let the garlic burn. You want it soft and golden, not brown and bitter.

Stir in the crushed tomatoes and vegetable broth. Bring the mixture to a boil, then reduce the heat to a simmer. Let it cook for 10 minutes, stirring occasionally. You’ll see the color deepen and the flavors start to meld together. The kitchen will smell like the best Italian restaurant you’ve ever been to.

Remove the pot from the heat. Stir in the chopped basil and heavy cream until well incorporated. The basil will wilt immediately, releasing its sweet, peppery flavor. The cream will turn the soup from a bright red to a soft, velvety coral.

Season with salt and freshly ground black pepper to taste. This is where you adjust. Maybe a little more salt. Maybe an extra pinch of red pepper flakes if you like heat. Taste it. Trust yourself.

Ladle the soup into bowls and top generously with the garlic and sage croutons. Serve hot. The croutons will float on top, staying crispy as you eat. It’s the perfect contrast of textures.

Tips for the Best Tomato Soup

I’ve made this soup more times than I can count. Here are the things I’ve learned along the way.

• Use a blender for extra creaminess. If you want a super smooth, velvety texture, use an immersion blender right in the pot before adding the cream. Or carefully transfer to a regular blender in batches. It makes a difference.
• Don’t skip the basil. Fresh basil is essential. It adds a sweetness and freshness that balances the acidity of the tomatoes. Dried basil just won’t give you the same result.
• Adjust the heat. The crushed red pepper flakes give a gentle warmth, not a spicy kick. If you’re sensitive to heat, use just ¼ teaspoon. If you love spice, go up to a full teaspoon.
• Use low-sodium broth. Canned tomatoes already have salt. Using low-sodium vegetable broth gives you control over the final seasoning.
• Don’t overcook after adding the cream. Once the cream goes in, just stir and serve. Boiling the soup after adding cream can cause it to curdle. Not a disaster, but not pretty either.

One more thing. If your soup tastes flat, it probably needs more salt or a squeeze of lemon. Tomatoes love acid and salt. Don’t be afraid to adjust at the end.

Variations to Try

This recipe is flexible. Here are some ways to make it your own.

Vegan version: Replace the heavy cream with full-fat coconut milk. Use a vegan Parmesan for the croutons. The coconut milk adds a subtle sweetness that works beautifully with the tomatoes.

Dairy-free version: Same swap use full-fat coconut milk or a good quality oat milk. Skip the Parmesan on the croutons or use a dairy-free alternative.

Different herbs: If you don’t have fresh sage, use 1 teaspoon dried sage. You can also mix it up with fresh thyme, oregano, or parsley. Each herb gives a slightly different character.

Grilled cheese pairing: This tomato soup with garlic and sage croutons is incredible with a grilled cheese sandwich. Use thick sourdough, sharp cheddar, and a little Dijon mustard. Dip the sandwich into the soup. Pure bliss.

Roasted tomato version: In summer, swap the canned tomatoes for 3 pounds of fresh Roma tomatoes, halved and roasted at 400°F for 30 minutes until caramelized. Add them to the pot with the broth and proceed as written. The roasted flavor is next level.

These are just starting points. Play around. That’s the fun part.

Storage and Leftovers

This soup is great for meal prep. Here’s how to handle leftovers.

For the soup: Store in an airtight container in the fridge for up to 4 days. The flavors actually get better overnight as they meld together. Reheat gently on the stovetop over medium-low heat, stirring occasionally. If the soup has thickened too much, add a splash of broth or water to thin it out.

For the croutons: Store separately at room temperature in a paper bag or a container with the lid slightly open. They’ll stay crispy for about 2 days. Don’t store them in the fridge the moisture will make them chewy.

Freezing: The soup freezes beautifully. Let it cool completely, then transfer to freezer-safe containers. Leave a little space for expansion. Freeze for up to 3 months. Thaw overnight in the fridge and reheat gently. The croutons don’t freeze well, so make fresh ones when you’re ready to serve.

Reheating tip: Never microwave the croutons with the soup. Always add them fresh after reheating. That’s how you keep them crunchy.

Frequently Asked Questions

I hope you love this soup as much as I do. It’s become a staple in my kitchen, and I think it will in yours too. Tag me when you make it! I’d love to see your croutons and hear how it turned out.

And if you’re looking for more cozy soup inspiration, check out my favorite soup recipes on Pinterest.

Creamy Tomato Soup with Garlic and Sage Croutons

A comforting bowl of rich, creamy tomato soup topped with crispy garlic and sage croutons, perfect for a cozy California evening.

Print Recipe Pin Recipe

Prep Time 15 minutes mins

Cook Time 30 minutes mins

Total Time 45 minutes mins

Servings: 1

Course: Comfort Food, Quick Meals, Soups

Cuisine: American

Calories: 310

Ingredients Method Nutrition Notes

Ingredients

  

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For the Croutons

• 3 slices firm Italian bread, cut into 1/2-inch cubes or use sourdough for a California twist
• 3 tablespoons unsalted butter melted
• 1 large garlic clove, minced
• 1 tablespoon fresh sage leaves, finely chopped
• 1 tablespoon shredded Parmesan cheese
• 1/4 teaspoon salt
• nonstick cooking spray for the baking sheet

For the Soup

• 2 teaspoons California olive oil
• 3 large garlic cloves, minced
• 1 teaspoon salt
• 1/2 teaspoon crushed red pepper flakes adjust to taste
• 2 cans (28 oz each) crushed tomatoes
• 1 1/2 cups vegetable broth low-sodium preferred
• 1/2 cup fresh basil leaves, packed chopped
• 1/2 cup heavy cream
• freshly ground black pepper to taste

Method

 

Make the Croutons

1. Preheat your oven to 375°F. Lightly coat a baking sheet with nonstick cooking spray.
2. Spread the bread cubes in a single layer on the prepared sheet. Bake until dry and just starting to brown at the edges, about 7 to 10 minutes. Transfer the cubes to a medium bowl.
3. In a small bowl, mix together the melted butter, minced garlic, chopped sage, Parmesan, and salt. Pour this mixture over the bread cubes and toss well to coat evenly.
4. Return the coated croutons to the baking sheet. Bake until golden brown and crispy, about 5 to 10 more minutes. Remove from the oven and set aside to cool.

Prepare the Soup

1. In a large pot, combine the olive oil, minced garlic, salt, and crushed red pepper flakes. Heat over medium heat, stirring, until the garlic is fragrant, about 1 minute.
2. Stir in the crushed tomatoes and vegetable broth. Bring the mixture to a boil, then reduce the heat to a simmer. Cook for 10 minutes, stirring occasionally.
3. Remove the pot from the heat. Stir in the chopped basil and heavy cream until well incorporated. Season with salt and freshly ground black pepper to taste.
4. Ladle the soup into bowls and top generously with the garlic and sage croutons. Serve hot.

Nutrition

Calories: 310kcalCarbohydrates: 28gProtein: 6gFat: 20gSaturated Fat: 11gCholesterol: 55mgSodium: 890mgFiber: 5gSugar: 12g

Notes

For a richer flavor, use San Francisco-style sourdough bread for the croutons. You can substitute dried sage if fresh isn’t available, using about 1 teaspoon. To make this soup vegan, replace the heavy cream with full-fat coconut milk and use a vegan Parmesan. Store leftover soup in an airtight container in the fridge for up to 4 days; keep croutons in a separate bag at room temperature. Reheat the soup gently on the stovetop, adding a splash of broth if it’s too thick. Avoid overcooking the soup after adding cream to prevent curdling. Garnish with extra fresh basil or a drizzle of olive oil for a beautiful presentation.

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Source: Nutritional Information