Pasta al pomodoro is a traditional Italian pasta dish made with tomatoes, olive oil, garlic, and basil, usually tossed with spaghetti and served hot. The simple sauce is gently simmered so the tomato flavor stays bright; family and regional versions vary, especially in the choice of pasta and whether they include onion or cheese.
Ingredients
- 1 lb (450 g) dried spaghetti
- 1 can (28 oz / 794 g) whole peeled tomatoes, including their juice
- 3 tbsp (45 ml) extra-virgin olive oil
- 3 medium garlic cloves (about 9 g), thinly sliced
- 1/2 cup (12 g) loosely packed fresh basil leaves, plus a few leaves to finish
- 1 tsp (6 g) fine salt for the sauce, plus more to taste
- 1 tbsp (17 g) fine salt for the pasta water
- 1/8 tsp (0.3 g) red pepper flakes, optional
- 1/4 tsp (0.5 g) freshly ground black pepper, or to taste
- 4 qt (3.8 L) water for boiling the pasta
- Up to 1 cup (240 ml) reserved pasta water, as needed for the sauce
- 1/2 cup (45 g) finely grated Parmigiano-Reggiano, optional, for serving
Instructions
- Prepare the ingredients. Set out a large saucepan or deep skillet and a large pot for the pasta. Thinly slice the garlic, rinse and dry the basil, and measure the salt and pepper. Open the tomatoes and crush them by hand in a bowl, or gently crush them in the can with a spoon. Keep the juice; it becomes part of the sauce. This preparation takes about 15 minutes and makes the cooking stages easier to manage.
- Gently cook the garlic. Add the olive oil and sliced garlic to the saucepan while it is still cool. Set it over medium-low heat and cook for about 3 minutes, stirring now and then. The garlic should become fragrant and just begin to turn pale gold, not dark brown. If using red pepper flakes, stir them in during the final 30 seconds. Starting the garlic in cool oil helps flavor the oil gradually and makes scorching less likely.
- Simmer the tomato sauce. Add the crushed tomatoes and their juice, the 1 teaspoon of salt, and the black pepper. Stir, bring the mixture to a gentle simmer, then lower the heat so it bubbles softly rather than splattering. Simmer uncovered for 20 minutes, stirring every few minutes and scraping the bottom of the pan. The sauce should thicken slightly but remain loose enough to coat pasta. Tear half of the basil and stir it in for the final 2 minutes. Taste and adjust the salt; canned tomatoes vary in saltiness and acidity.
- Boil the pasta water. After the sauce has simmered, bring the 4 quarts of water to a rolling boil in the large pot. Stir in the 1 tablespoon of salt. Adding salt once the water boils keeps it from sitting on the bottom of a cold pot. The water should taste pleasantly seasoned, not harshly salty.
- Cook the spaghetti. Add the spaghetti and stir during the first minute to help prevent the strands from sticking. Cook for about 10 minutes, or follow the package time for al dente pasta; begin checking a minute before the stated time. The strands should be tender but still have a slight firmness at the center. Before draining, reserve 1 cup of the pasta water. Drain the spaghetti without rinsing it, since its surface starch helps the sauce cling.
- Toss and finish. Add the drained pasta to the tomato sauce and toss over low heat for about 2 minutes. Add a splash of reserved pasta water if the sauce looks thick or does not coat the strands evenly. Stir in the remaining basil, taste once more, and adjust the seasoning. Serve promptly, with grated Parmigiano-Reggiano at the table if desired. The pasta should look glossy, with sauce on the noodles rather than pooled thinly at the bottom of the pan.
Tips
- Choose tomatoes for the texture you like. Whole peeled canned tomatoes are convenient and easy to crush by hand. They are often packed in juice, which gives this sauce a soft, rustic texture. If you have ripe, flavorful fresh tomatoes, peel and chop about 2 lb (900 g) and simmer them until tender; watery or out-of-season tomatoes may produce a thinner, less concentrated sauce. Pass the sauce through a food mill if you prefer it smooth, but avoid blending it for a long time because that can make the texture foamy.
- Keep the heat gentle. Garlic browns quickly, and browned garlic can taste bitter in a delicate tomato sauce. If the pan gets too hot, take it off the burner briefly before adding the tomatoes. During the simmer, aim for a few small bubbles rather than a rapid boil. A steady, gentle simmer reduces splattering and lets the sauce thicken without sticking.
- Use pasta water gradually. The reserved water is starchy and lightly salted, so add it a tablespoon or two at a time while tossing. Too much at once can make the sauce watery, while skipping it can leave the pasta dry if the sauce has reduced more than expected. If you forget to reserve it, use a small splash of hot water, but the finished sauce may not cling quite as well.
- Season after tasting. Tomato acidity and salt levels differ among cans, and the cheese added at the table can contribute more salt. Taste the sauce before adding extra salt, then taste again after tossing with the pasta. For a sweeter tomato profile, simmer a little longer rather than adding sugar automatically; longer cooking concentrates the tomatoes naturally.
Serving Suggestions
Serve pasta al pomodoro as soon as it is tossed, in warmed shallow bowls so the sauce stays hot. Add a few torn basil leaves and a light snowfall of finely grated Parmigiano-Reggiano, if you like. The cheese is optional; leaving it off keeps the dish suitable for guests avoiding dairy. A small drizzle of olive oil at the table can add aroma, but it is not necessary if the sauce already looks glossy.
For a simple Italian-style meal, offer a green salad dressed with olive oil and vinegar, or serve the pasta with sautéed greens such as spinach or broccoli rabe. Crusty bread is useful for catching any sauce left in the bowl. If serving the pasta as one course in a larger meal, keep portions moderate and follow it with vegetables or another dish. The sauce is flavorful but uncomplicated, so strongly seasoned sides can overwhelm its fresh tomato and basil character.
Variations
Use another pasta shape. Spaghetti is a familiar choice, but bucatini, linguine, penne, or rigatoni also work. Long strands give a classic twirlable bowl; short shapes catch sauce inside their openings and are easier to serve at a shared table. Adjust the pasta cooking time to the package directions rather than assuming every shape takes the same amount of time.
Add onion for a rounder sauce. Some home and regional versions start with finely diced onion alongside the garlic. Use about 1/2 cup (75 g), cook it gently in the oil until soft for 5 to 7 minutes, then add the garlic for the final minute before adding tomatoes. Onion makes the sauce sweeter and fuller, so this version tastes a little less direct and tomato-forward.
Make a smoother sauce. If you do not like pieces of tomato, crush the tomatoes thoroughly before cooking or pass the finished sauce through a food mill. A food mill removes seeds and larger pieces while keeping a natural texture. Avoid straining away all the tomato pulp, which would leave the sauce thin and reduce its flavor.
Make it more substantial. Add cooked white beans or sautéed mushrooms to the finished sauce for a meat-free variation, or top individual servings with a few sliced olives. These are useful additions, but they change the dish from a simple tomato-and-basil pasta into a heartier variation. Keep additions modest so the sauce still coats the pasta evenly; if they release liquid, simmer the sauce briefly before tossing.
Storage and Reheating
For the best texture, store leftover pasta and sauce separately when possible. Transfer each to a covered container and refrigerate within 2 hours of cooking. The sauce keeps for 3 to 4 days in the refrigerator; cooked pasta is also best used within 3 to 4 days. If they are already mixed, refrigerate the combined leftovers in a shallow container so they cool promptly. Do not leave cooked pasta at room temperature for extended storage.
Reheat sauce in a small saucepan over medium-low heat, stirring until steaming, and loosen it with a spoonful of water if needed. Warm pasta in a skillet with a splash of water or sauce, tossing until hot throughout. For food safety, USDA FSIS advises reheating leftovers to 165°F (74°C); check the center with a food thermometer, especially for a larger portion. A microwave also works: cover loosely, heat in short intervals, stir between intervals, and confirm that the food is evenly hot. Freezing the sauce is a better choice than keeping it refrigerated longer than 4 days: cool it promptly, freeze in a dated airtight container, and thaw in the refrigerator before reheating. Pasta can be frozen too, though its texture may become softer.
Frequently Asked Questions
Can I make the tomato sauce ahead?
Yes. Prepare the sauce, cool it promptly, and refrigerate it in a covered container for up to 3 to 4 days. Reheat it gently while the pasta cooks, then toss the freshly cooked spaghetti into the sauce. This approach gives the pasta a better texture than storing it already mixed with sauce.
Can I use fresh tomatoes instead of canned?
Yes, but choose ripe tomatoes with good flavor. Peel and chop about 2 lb (900 g), then simmer them until tender and reduced; the time can vary with their water content. Fresh tomatoes may make a lighter, less concentrated sauce than canned whole peeled tomatoes, particularly when tomatoes are not at their peak.
Why is my sauce sour or too acidic?
First simmer it a little longer and taste again, since cooking can soften sharp edges and concentrate the tomato flavor. Check that the garlic has not browned, as burnt garlic can also taste harsh. If the tomatoes remain especially tart, a small amount of finely grated carrot cooked with the sauce can add mild sweetness without making the dish taste sugary.
Do I need to rinse the pasta after draining?
No. Rinsing washes away surface starch that helps the sauce cling to spaghetti. Drain the pasta and add it directly to the saucepan. The exception would be pasta for a cold salad, where cooling and rinsing are sometimes useful; that is a different preparation from this hot, sauced dish.
Can I make this recipe vegan or gluten-free?
The sauce itself is vegan as written, provided you omit the optional cheese or choose a suitable dairy-free alternative. For a gluten-free meal, use certified gluten-free spaghetti and follow its package directions, since cooking times and the amount of pasta water may differ. Stir gently because some gluten-free pastas are more fragile when cooked.
What should I do if the finished pasta seems dry?
Return the pan to low heat and toss in reserved pasta water a little at a time until the sauce loosens and coats the strands. If the pasta has already cooled, reheat it with a splash of water or sauce rather than adding oil alone. Oil can make the noodles slippery without restoring the moisture and cohesive texture the sauce needs.
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