Parsley Spaghetti is not a garnish. It's the star of a dish that proves fresh herbs can carry a full meal. This recipe transforms a bunch of flat-leaf parsley into a bright, garlicky sauce that clings to every strand of spaghetti.
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The technique is simple: blanch parsley briefly to keep its color vivid, then blend it with olive oil, garlic, and Parmesan. Toss with hot pasta and a splash of pasta water to create an emulsion that's both light and satisfying. It's a 20-minute dinner that tastes like it took longer.
Why You'll Love This Recipe
About the Ingredients
12 oz (340g) spaghetti
Use a good-quality bronze-die spaghetti for better sauce adherence. Substitute with linguine or fettuccine if preferred.
2 cups (60g) fresh flat-leaf parsley leaves, loosely packed
Flat-leaf (Italian) parsley has more flavor than curly. If using curly, increase to 2.5 cups.
3 cloves garlic, roughly chopped
Fresh garlic is essential; do not substitute with powder. For a milder taste, remove the germ from each clove.
1/2 cup (120ml) extra-virgin olive oil
Use a fruity, not peppery, olive oil to let the parsley shine. Substitute with a neutral oil plus a pat of butter for richness.
1/2 cup (50g) grated Parmesan cheese, plus more for serving
Freshly grated Parmigiano-Reggiano melts best. Pecorino Romano can be used for a saltier, sharper flavor.
1/2 teaspoon kosher salt, plus more for pasta water
Adjust to taste; table salt is more concentrated, so use less if substituting.
1/4 teaspoon red pepper flakes (optional)
Adds a gentle heat. Omit for a kid-friendly version, or increase to 1/2 teaspoon for more spice.
1/4 cup (60ml) pasta cooking water, reserved
The starchy water helps bind the sauce to the pasta. Always reserve before draining.
Tips & Tricks
Don't overcook the parsley
Blanch for exactly 30 seconds, then shock in ice water to set the bright green color.
Reserve pasta water before draining
You'll need about a quarter cup to loosen the sauce; add more if the pasta seems dry.
Undercook the pasta by 1 minute
It will finish cooking in the sauce, absorbing flavor without becoming mushy.
Pro Tips
Step-by-Step Instructions
1. Boil the Pasta
Bring a large pot of generously salted water to a rolling boil (212°F / 100°C). Add the spaghetti and cook according to package instructions until 1 minute shy of al dente.
2. Blanch the Parsley
While the pasta cooks, drop the parsley leaves into the boiling water for 30 seconds. Remove with a slotted spoon and immediately plunge into a bowl of ice water to stop cooking. Drain and squeeze out excess water.
3. Blend the Sauce
In a blender, combine the blanched parsley, garlic, olive oil, Parmesan, salt, and red pepper flakes (if using). Blend on high until completely smooth, about 60 seconds. Taste and adjust salt.
4. Reserve Pasta Water
Just before draining the pasta, scoop out 1 cup (240ml) of the cooking water. Drain the spaghetti (do not rinse) and return to the pot.
5. Combine and Emulsify
Pour the parsley sauce over the hot pasta. Add 1/4 cup (60ml) of the reserved pasta water. Toss over medium-low heat (about 300°F / 150°C) for 1-2 minutes, until the sauce coats the noodles and the liquid has slightly thickened. Add more pasta water a tablespoon at a time if needed.
6. Season and Serve
Remove from heat. Season with additional salt and black pepper to taste. Serve immediately, topped with extra Parmesan and a drizzle of olive oil if desired.
Delicious Variations
- Add 8 oz (225g) sautéed shrimp or grilled chicken for a protein boost.
- Stir in 1 cup cherry tomatoes, halved, and a handful of arugula at the end for freshness.
- For a vegan version, omit the Parmesan and add 2 tablespoons nutritional yeast and 1 tablespoon lemon juice.
How to Store Parsley Spaghetti
Refrigerator
Store in an airtight container for up to 3 days. The color may dull, but the flavor will hold.
Freezer
Freeze the sauce (without pasta) in a freezer-safe container for up to 1 month. Thaw overnight in the fridge.
Reheating
Reheat in a skillet over medium heat with a splash of water or olive oil. Do not microwave for too long or the pasta will become mushy.
Frequently Asked Questions
Q: Can I use dried parsley?
No, dried parsley will not provide the same vibrant flavor or color. Use fresh flat-leaf parsley for the best result.
Q: How do I keep the sauce from turning brown?
Blanch the parsley briefly and shock in ice water to set the color, then blend immediately. Also, avoid over-processing, which can cause oxidation.
Q: Can I make this gluten-free?
Yes, use gluten-free spaghetti made from rice or corn. Adjust cooking time according to the package and reserve extra pasta water, as gluten-free pasta tends to absorb more liquid.
Q: What can I use instead of Parmesan?
Pecorino Romano, Grana Padano, or a vegan Parmesan alternative all work well. For a dairy-free option, use nutritional yeast for a cheesy flavor.
If you're looking for a weeknight pasta that's fresh, fast, and foolproof, give this Parsley Spaghetti a try. It's a simple way to elevate your dinner game—and your parsley will never go to waste again. Invest in your knowledge.
Parsley Spaghetti
Parsley Spaghetti is a vibrant, garlicky pasta that turns a bunch of parsley into a silky, 20-minute weeknight dinner.
🧂 Ingredients
- 12 oz (340g) spaghetti
- 2 cups (60g) fresh flat-leaf parsley leaves, loosely packed
- 3 cloves garlic, roughly chopped
- 1/2 cup (120ml) extra-virgin olive oil
- 1/2 cup (50g) grated Parmesan cheese, plus more for serving
- 1/2 teaspoon kosher salt, plus more for pasta water
- 1/4 teaspoon red pepper flakes (optional)
- 1/4 cup (60ml) pasta cooking water, reserved
📋 Instructions
- 1Boil the Pasta — Bring a large pot of generously salted water to a rolling boil (212°F / 100°C). Add the spaghetti and cook according to package instructions until 1 minute shy of al dente.
- 2Blanch the Parsley — While the pasta cooks, drop the parsley leaves into the boiling water for 30 seconds. Remove with a slotted spoon and immediately plunge into a bowl of ice water to stop cooking. Drain and squeeze out excess water.
- 3Blend the Sauce — In a blender, combine the blanched parsley, garlic, olive oil, Parmesan, salt, and red pepper flakes (if using). Blend on high until completely smooth, about 60 seconds. Taste and adjust salt.
- 4Reserve Pasta Water — Just before draining the pasta, scoop out 1 cup (240ml) of the cooking water. Drain the spaghetti (do not rinse) and return to the pot.
- 5Combine and Emulsify — Pour the parsley sauce over the hot pasta. Add 1/4 cup (60ml) of the reserved pasta water. Toss over medium-low heat (about 300°F / 150°C) for 1-2 minutes, until the sauce coats the noodles and the liquid has slightly thickened. Add more pasta water a tablespoon at a time if needed.
- 6Season and Serve — Remove from heat. Season with additional salt and black pepper to taste. Serve immediately, topped with extra Parmesan and a drizzle of olive oil if desired.
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