Thermomix Roasted Tomato Basil Sauce
Make an authentic, velvety roasted tomato basil sauce in your Thermomix—perfect for pasta, pizza, or dipping. This easy recipe brings out deep tomato flavor and fresh basil aroma for a homemade Italian classic.
Tested & Approved by FoodieManiac
Every recipe on this site is tested at least 3 times in my home kitchen before publishing. I've been developing sauce recipes for over 8 years, focusing on restaurant-quality results with everyday ingredients. Learn more about me →
Ingredients
- •1.2 kg ripe Roma tomatoes, halved
- •3 tbsp olive oil, divided
- •1 medium yellow onion, quartered
- •4 garlic cloves, unpeeled
- •1 tsp sea salt
- •1/2 tsp freshly ground black pepper
- •1 tbsp tomato paste
- •1 tsp sugar (optional, to balance acidity)
- •1/2 tsp dried oregano
- •1 small bunch fresh basil leaves (about 20g), plus extra for serving
- •1 tbsp balsamic vinegar (optional)
Instructions
- 1
Preheat your oven to 220°C (430°F). Line a baking tray with parchment paper.
- 2
Arrange halved tomatoes (cut side up), quartered onion, and unpeeled garlic cloves on the tray. Drizzle with 2 tbsp olive oil and sprinkle with 1/2 tsp salt and 1/4 tsp black pepper.
- 3
Roast vegetables in the preheated oven for 25-30 minutes, until tomatoes are soft and slightly caramelized. Allow to cool for a few minutes.
- 4
Squeeze roasted garlic from skins and transfer all roasted vegetables to the Thermomix bowl. Add tomato paste, sugar (if using), oregano, and balsamic vinegar (if using).
- 5
Blend for 10 seconds / speed 6. Scrape down the sides.
- 6
Add basil leaves and remaining olive oil. Cook for 12 minutes / 100°C / speed 2 with measuring cup off (place simmering basket on top to avoid splatter).
- 7
Season with the remaining salt and pepper, taste and adjust as needed.
- 8
Blend again for 20 seconds / speed 7 for a smoother sauce, or less if you prefer it chunky.
- 9
Serve immediately, or let cool and store as needed.
Tips & Variations
Pro Tips
- • Use the ripest, freshest tomatoes for the best flavor.
- • Roasting the garlic unpeeled prevents burning and results in a mild, sweet flavor.
- • For a silky-smooth sauce, strain through a fine mesh sieve after blending. See <a href="/articles/how-to-strain-sauces-techniques-for-silky-smooth-results">How to Strain Sauces Like a Pro</a>.
- • If your tomatoes are especially acidic, don’t skip the sugar or balsamic vinegar to balance the flavors.
- • This sauce can be doubled or halved easily. Adjust blending time for larger or smaller batches.
Storage
- • Refrigerator: Up to 1-2 weeks in airtight container
- • Freezer: Up to 3 months (thaw overnight in fridge)
- • Best Practice: Store in glass jars for longer freshness
Recipe Variations
- • Spicy: Add 1/2 tsp red chili flakes with the tomato paste for a subtle kick.
- • Creamy: Stir in 2 tbsp heavy cream or a swirl of <a href="/recipes/creamy-feta-dill-dip">Creamy Feta Dill Dip</a> after cooking for a richer, creamier finish.
- • Herby: Add a handful of fresh parsley or oregano with the basil for extra depth.
Frequently Asked Questions
Can I use canned tomatoes instead of fresh?
Yes, you can use high-quality canned whole tomatoes (about 2 x 400g cans). The flavor won't be as fresh or sweet as roasted, but it still works well.
Can I freeze this sauce?
Absolutely! Cool completely, portion into airtight containers or freezer bags, and freeze for up to 3 months. See our <a href="/articles/freezing-sauces-methods-containers-thawing-tips">Freezing Sauces 101</a> for details.
How long does this sauce last in the fridge?
It keeps for up to 5 days in an airtight container in the refrigerator. For longer storage, freeze as directed.
Is this sauce suitable for gluten-free and vegan diets?
Yes, this recipe is naturally gluten-free and vegan as written.
Can I make this without a Thermomix?
Yes! Roast the vegetables as described, then blend with a standard blender and simmer in a saucepan.
Try These Too
Similar recipes
Thermomix Chipotle Crema Sauce
This smoky, creamy chipotle crema sauce is the perfect finishing touch for tacos, burritos, grain bowls, or roasted veggies. Made effortlessly in the Thermomix, it delivers bold flavor with a hint of spice and tang.
Thermomix Roasted Garlic Parmesan Dressing
Elevate your salads and veggies with this creamy Thermomix Roasted Garlic Parmesan Dressing. Packed with slow-roasted garlic and tangy parmesan, it's the perfect homemade alternative to store-bought dressings and ready in minutes with your Thermomix.
Thermomix Green Goddess Dressing
Make a vibrant, creamy Green Goddess dressing in your Thermomix with fresh herbs, tangy yogurt, and zesty lemon. Perfect as a salad dressing, dip, or sauce for grilled meats and vegetables.
Thermomix Sweet Chili Mayo
Learn how to make creamy Sweet Chili Mayo in your Thermomix! This zesty, sweet, and slightly spicy dipping sauce is perfect for fries, seafood, chicken, and sandwiches—ready in minutes with pantry staples.
🔥 Popular Sauces
Reader favorites
Keep Exploring
Browse All 50+ Recipes
From copycat fast-food sauces to international favourites and BBQ glazes—all free, all tested.
View All Recipes