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When the sun shines down on my garden in late summer, there’s nothing more satisfying than gathering a basket full of ripe, juicy tomatoes. The exhilaration I feel is not just from the harvest but from the delicious possibilities that await me in the kitchen. One such joy is my Homemade Roasted Tomato Basil Soup—a vibrant, velvety creation that pays homage to the bountiful season. As I roast the tomatoes alongside sweet garlic and caramelized onions, the kitchen fills with an irresistible aroma that beckons my family to the table.

This vegan comfort food masterpiece is more than just a way to use up garden vegetables; it brings together rich, layered flavors that easily rival any store-bought option. With the right blend of fresh basil and a splash of coconut milk, this soup is a guilt-free indulgence, perfect for lunch or dinner. So, let’s dive into this deceptively simple recipe that promises to become a cherished staple in your home—one spoonful at a time!

Why is Roasted Tomato Basil Soup a Must-Try?

Irresistible Flavor: This soup brings out the natural sweetness of garden-fresh tomatoes, enhanced by roasted garlic and caramelized onions, making every spoonful a taste sensation!

Vegan-Friendly: Perfect for those seeking plant-based meals, you can enjoy all that creamy goodness without dairy by substituting with coconut milk.

Seasonal Delight: Best made with ripe summer tomatoes, it’s a fantastic way to celebrate the season’s bounty.

Quick Preparation: With just a few straightforward steps, you can have this comforting soup ready in under an hour!

Crowd-Pleasing Appeal: Whether for a family dinner or a gathering with friends, this soup is sure to impress and satisfy everyone!

Roasted Tomato Basil Soup Ingredients

For the Soup
• Roma or Plum Tomatoes – The core ingredient that gives the soup its rich flavor; choose fresh and ripe for the best taste.
• Garlic – Adds aromatic depth; roasting it alongside the tomatoes brings out sweeter notes.
• Olive Oil – Essential for roasting; it enhances flavors and helps caramelize the onions beautifully.
• Yellow Onions – Vital for sweetness; caramelizing these onions elevates the whole dish, so consider using two for extra flavor.
• Fresh Basil Leaves – Provides an aromatic, herbal quality; dried herbs can substitute in a pinch, but fresh is best!
• Dried Oregano – Adds Italian flair; it’s optional but recommended for additional depth of flavor.
• Vegetarian Broth or Water – Adjusts the soup’s thickness; add as needed depending on desired consistency.
• Coconut Milk or Heavy Cream (optional) – Choose coconut milk for a creamy, vegan version that complements the flavors well.
• Parmesan Cheese (optional) – Adds a rich umami flavor; feel free to omit for a completely dairy-free soup.
• Butter (optional) – Enhances richness; use sparingly if keeping the recipe vegan.

How to Make Roasted Tomato Basil Soup

Preheat the oven to 400°F (200°C) and line a baking sheet with parchment paper. This sets the stage for roasting those delicious tomatoes to perfection!
Prepare the tomatoes by halving them and placing them on the baking sheet with peeled garlic cloves. Drizzle with olive oil and season generously with salt and pepper for that extra flavor kick!
Roast in the oven for 40-45 minutes, or until the tomatoes are golden and tender. You’ll know it’s ready when your kitchen fills with mouthwatering aromas!
Cook the onions by heating olive oil in a pot over medium heat. Add the sliced onions and cook slowly for about 20-30 minutes, until caramelized and sweet. This step adds depth to your soup!
Blend the roasted tomatoes, garlic, caramelized onions, fresh basil, and oregano until smooth using a food processor or immersion blender. This is where the magic happens, turning roasted goodness into a silky soup!
Simmer the blended mixture in the pot, adding broth or water to achieve your desired consistency. Let it bubble gently for about 10 minutes to meld all those fantastic flavors!
Taste and adjust the seasoning as needed—add more salt or herbs to make it just right for you! Ensure it’s as flavorful as your taste buds desire.
Garnish with shaved or grated Parmesan and serve with crusty bread or grilled cheese for a comforting meal that’s hard to resist!

Optional: Serve with a drizzle of olive oil on top for an extra touch of richness.

Exact quantities are listed in the recipe card below.

What to Serve with Homemade Roasted Tomato Basil Soup?

Cozy up your dining table with these delightful sides that will perfectly complement your bright and creamy soup.

Grilled Cheese Sandwiches: A classic pairing, the melted cheese and crispy bread provide a comforting crunch against the smooth soup.
Crusty Sourdough Bread: Its chewy texture and tangy flavor make it ideal for dipping, enhancing each spoonful of savory goodness.
Fresh Garden Salad: A crisp mix of fresh greens and vibrant veggies adds a refreshing contrast, balancing the warm, rich flavors of the soup.
Herbed Croutons: These crunchy bites are perfect for topping your soup, adding texture and an extra punch of flavor.
Roasted Vegetable Medley: Tossed in olive oil and herbs, the caramelized sweetness of roasted veggies makes for a delightful side bursting with seasonal flavor.
Chickpea Salad: This protein-packed salad brings a hearty element to the meal, while its vibrant herbs and spices harmonize beautifully with the tomato soup.
Smooth Coconut Rice: Pairing the soup with subtly flavored coconut rice creates a light, creamy side dish that echoes the coconut hints in the soup.
Chardonnay or Sauvignon Blanc: A chilled glass of either wine enhances the meal, as their fruity notes elevate the richness of the roasted tomato basil soup.

Expert Tips for Roasted Tomato Basil Soup

Choose Quality Tomatoes: Always opt for ripe Roma or Plum tomatoes; fresh, flavorful produce makes all the difference in your roasted tomato basil soup.
Roast Properly: Ensure your garlic is golden but not burnt to avoid bitterness; burnt garlic can ruin the sweet profile of the soup.
Creamy Consistency: For an ultra-smooth texture, add coconut milk or cream right before serving, stirring well to blend in seamlessly.
Adjust Seasoning: Don’t forget to taste the soup before serving; adding a pinch of salt or more herbs can enhance the flavors significantly.
Storage Savvy: Cool the soup completely before transferring it to airtight containers; it will keep in the fridge for 4-5 days or freeze for up to 3 months.

How to Store and Freeze Roasted Tomato Basil Soup

Fridge: Cool the soup completely before transferring to airtight containers. It can be stored in the refrigerator for up to 4-5 days without losing flavor or texture.

Freezer: For longer storage, freeze the soup in airtight containers or freezer bags for up to 3 months. Make sure to leave some space at the top for expansion.

Reheating: Thaw in the refrigerator overnight before reheating. Warm the soup on the stove over medium heat, stirring occasionally, until heated through.

Portioning: Consider portioning the soup before freezing for easy meal prep! Single servings are great for quick lunches or cozy dinners.

Roasted Tomato Basil Soup Variations

Feel free to adapt this delightful recipe to your taste and pantry. Let your creativity shine!

Herb Swap: Replace fresh basil with thyme or parsley for a different herbaceous twist that fresh herbs offer.
Sweet Pepper Addition: Include red or yellow bell peppers during the roasting process for a naturally sweeter flavor that complements the tomatoes beautifully.
Carrot & Celery Base: Add diced carrots or celery when caramelizing onions to introduce a lovely sweetness and depth to the soup’s flavor.
Spicy Spin: Toss in some crushed red pepper flakes while blending for a subtle heat that transforms the soup into a zesty delight.
Creamy Alternatives: Try cashew cream in place of coconut milk for a nutty flavor and a luxuriously creamy texture without dairy.
Nutty Garnish: Top with toasted pine nuts or almonds for a satisfying crunch that adds texture and elevates the dish’s richness.
Roasted Veggie Mix: Blend in roasted zucchini or eggplant for a heartier soup that’s packed with even more garden goodness.
Tropical Twist: Add a splash of lime juice and fresh cilantro for a bright and refreshing version that dances on the palate!

Make Ahead Options

These Homemade Roasted Tomato Basil Soup preparations are perfect for busy weeknights or meal planning! You can roast the tomatoes and garlic up to 24 hours in advance, allowing them to cool before transferring them to an airtight container in the refrigerator. Additionally, the caramelized onions can be prepared up to 3 days ahead; just refrigerate them after cooking. When you’re ready to serve, simply blend the prepped ingredients, simmer with broth, and adjust the seasonings as needed. This approach not only saves you time but ensures your soup remains just as delicious and flavorful, offering a cozy, comforting meal with minimal effort!

Roasted Tomato Basil Soup Recipe FAQs

What type of tomatoes should I use for the best flavor?
Absolutely! I recommend using fresh Roma or Plum tomatoes for this soup. They provide a naturally rich flavor that’s essential for making a delicious roasted tomato basil soup. Look for tomatoes that are firm yet slightly soft to the touch, with no dark spots all over. Fresh is best, especially during summer when they’re in season!

How should I store leftover roasted tomato basil soup?
Very! Once you’ve cooled the soup completely, transfer it to airtight containers. It can be stored in the refrigerator for up to 4-5 days. Just ensure to let it cool to room temperature, as putting hot food directly in the fridge can disrupt its temperature balance and lead to bacterial growth.

Can I freeze roasted tomato basil soup?
Absolutely! To freeze this delightful soup, pour it into airtight containers or freezer bags—just be sure to leave some space at the top for expansion. It will keep well in the freezer for up to 3 months. When you’re ready to enjoy it, thaw the soup in the refrigerator overnight, then reheat gently on the stove over medium heat.

What should I do if my soup is too thick?
Very! If you find that your soup is thicker than desired, simply add a bit of vegetable broth or water while warming it up. Stir continuously until you reach your preferred consistency. Remember, sometimes less is more, so add the liquid a little at a time until it’s just right!

Are there any dietary considerations for this recipe?
Absolutely! This soup is not only vegan-friendly but you can also customize it if you have allergies. For a gluten-free version, ensure that any broth you use is certified gluten-free. Additionally, you can easily omit optional ingredients like Parmesan cheese for a completely dairy-free soup. It’s kinder on your belly and perfect for pets as well, just be sure not to add any salt or onion to share with them!

How can I enhance the flavor profile with variations?
Oh, I’m glad you asked! You can consider swapping fresh basil for a mix of fresh herbs like thyme or parsley based on what you have on hand—each brings its unique flavor! Additionally, adding roasted red bell pepper during the roasting process can impart a sweeter flavor. For a heartier soup, try incorporating diced carrots or celery when caramelizing the onions. These variations keep things exciting and can showcase the fresh produce from your garden!