Slow-Roasted Tomato & Basil Pasta Recipe for Dinner

I should say: high-maintenance tomato basil pasta.

Because that is exactly what this is: a labor of love. It’s easily the best tomato basil pasta I’ve ever had, but yes—it’s a bit high maintenance.

Technically it takes about two hours from start to finish. Don’t be intimidated: most of that time is hands-off roasting or waiting. The end result, though, is totally worth it.

It’s dreamy and indulgent—a special dinner that feels like a treat.

Instead of tossing hot pasta with raw chopped or burst tomatoes, this version uses slow roasted tomatoes and bright basil oil as the flavor anchors. Both elements elevate the dish: deeply caramelized, concentrated-sweet tomatoes and an intensely aromatic green oil made from fresh basil.

YES.

They are major flavor players. And of course there’s a generous amount of freshly grated Parmesan to bind everything together.

Now, a few notes on why this recipe earns the “high maintenance” label—and why it’s still practical. Both the slow roasted tomatoes and the basil oil can be prepared ahead of time. Roast a large batch of tomatoes on a Sunday and keep extras in the fridge for salads, sandwiches or another pasta night. The basil oil keeps well too and is brilliant on salads, grilled vegetables, or brushed on garlic bread.

The slow roasted tomatoes require low-and-slow oven time to concentrate sugars and caramelize skins—about 1.5 to 2 hours while you do other things. The basil oil needs a quick blanch and a blitz in the blender, followed by resting and straining to leave a clear, vibrant green oil. Both processes reward patience with flavor that outshines simple chopped tomatoes or an ordinary drizzle of olive oil.

You can absolutely make the basil oil in advance. It stores for several days in the fridge and will stay a gorgeous vivid green. Use it to dress tomatoes, zucchini, or to finish other pastas—the aroma is intense and fresh.

For the pasta itself, cook whole wheat spaghetti, bucatini, fettuccine, or your favorite noodle. Drain while still hot and toss with a few tablespoons of basil oil so the noodles turn a lovely green and pick up that fresh basil aroma. The oil is silkier and more visually striking than pesto because it’s smooth, not chunky.

That means HEALTH FOOD right?

Maybe. Definitely delicious. Stir in lots of grated Parmesan so it melts into the warm noodles, and add minced garlic if you like a subtle garlicky note—the heat from the pasta tames raw garlic’s bite. Fold in the slow roasted tomatoes along with any juices left in the roasting pan, add torn fresh basil leaves and a final sprinkle of Parmesan. Taste and adjust with salt and freshly ground black pepper as needed.

When you break the dish down, the ingredient list is short: basil oil, slow roasted tomatoes, pasta, cheese and herbs. But making each component properly makes this more than the sum of its parts—a true labor of love that tastes exceptional.

Very. Very. Very into it.

Tomato Basil Pasta

Slow Roasted Tomato Basil Pasta

Yield:

4
people

Prep Time:
30 mins

Cook Time:
2 hrs

Total Time:
2 hrs 30 mins

This tomato basil pasta is a labor of love: slow roasted tomatoes, vibrant basil oil, and plenty of Parmesan deliver intense, balanced flavor.

Ingredients

Slow roasted tomatoes

• 2 pints cherry or grape tomatoes, halved
• 1 tablespoon olive oil
• 1/2 tablespoon sugar
• 1 garlic clove, minced
• 1/2 teaspoon salt
• 1/2 teaspoon black pepper
• 1/2 teaspoon dried thyme

Basil oil

• 2 cups tightly packed sweet basil leaves
• 1 cup olive oil
• 1/2 teaspoon salt
• Freshly ground black pepper, to taste

Pasta

• 1 pound whole wheat spaghetti (or pasta of choice)
• 3 to 4 tablespoons basil oil, or more to taste
• 2 garlic cloves, minced (optional)
• 1/2 cup freshly grated Parmesan, plus extra for serving
• 2 pints slow roasted tomatoes
• Fresh basil leaves and shaved Parmesan for garnish

Instructions

Slow roasted tomatoes

• Preheat the oven to 300°F (150°C). Line a baking sheet with parchment paper.
• Arrange halved cherry tomatoes on the sheet. Drizzle with olive oil and toss with garlic, sugar, salt, thyme, and pepper. Roast for 1.5 to 2 hours, tossing every 30 minutes, until tomatoes are caramelized, shriveled, and sweet.
• Cool and store in an airtight container in the refrigerator for a few days if you have extras.

Basil oil

• Bring a pot of water to a boil and prepare an ice bath. Blanch basil leaves for about 10 seconds, then immediately transfer to the ice bath to stop cooking. Drain and squeeze out excess water, then roughly chop.
• Place basil in a blender or food processor with olive oil and salt. Puree until smooth and bright green. Let sit about 30 minutes, then strain through a fine mesh sieve or cheesecloth, pressing to extract the oil. Refrigerate for up to a week.

Pasta

• Cook pasta in well-salted boiling water according to package directions. Drain and return to a large bowl while still hot.
• Toss pasta immediately with 3 to 4 tablespoons basil oil (add more if desired), minced garlic if using, and the grated Parmesan so it melts into the noodles.
• Fold in the slow roasted tomatoes and any juices from the pan. Taste and adjust with salt and freshly ground black pepper. Finish with extra Parmesan and torn basil leaves. Serve right away.

Notes

Basil oil technique adapted from Fine Cooking. Store basil oil chilled and use within a week.

Course: Main Course

Cuisine: American

Author: How Sweet Eats

Keeping the whole bowl to myself, thank you very much.