Emerald Basil Walnut Pesto Pasta: A Ligurian Dream
Vibrant basil and walnut pesto clings lovingly to perfectly cooked pasta, offering a nutty, herbaceous bite.
By Janelle
Updated: January 18, 2026
Why I Love This Recipe
Pesto, that vibrant green sauce hailing from the Liguria region of Italy, is more than just basil, garlic, and olive oil. It's a celebration of fresh ingredients and simple flavors, meant to be enjoyed al fresco with friends and family. This version elevates the classic with the addition of toasted walnuts, adding a deeper, earthier dimension to the bright, herbaceous basil. The slight bitterness of the walnuts balances the sweetness of the basil and the sharpness of the Parmesan, creating a pesto that is both complex and utterly satisfying. Serve it tossed with your favorite pasta shape for a quick and elegant weeknight meal.
- •Nutty Complexity - Toasted walnuts provide a rich, earthy counterpoint to the bright basil.
- •Vibrant Freshness - The lemon juice brightens the pesto, preventing it from becoming heavy and ensuring a lively flavor.
- •Quick Weeknight Meal - Ready in under 30 minutes, perfect for a busy evening.
- •Naturally Gluten-Free Option - Easily adaptable to gluten-free diets by using gluten-free pasta.
- •Homemade Superiority - The taste of freshly made pesto far surpasses anything you can buy in a jar.
Ingredients You'll Need
Here's what you'll need – nothing too fancy, just good ingredients that work together beautifully.
- 1 lb Pasta (linguine, spaghetti, or your favorite)
- 2 cups Fresh Basil Leaves (packed)
- 1/2 cup Walnuts (toasted)
- 2 Garlic Cloves
- 1/2 cup Parmesan Cheese (grated, plus more for serving)
- 1/2 cup Olive Oil (extra virgin)
- 1 tablespoon Lemon Juice (freshly squeezed)
- to taste Salt
- to taste Black Pepper
- 1/2 cup Pasta Water (reserved)
Step-by-Step Instructions
- 1
Bring a large pot of salted water to a rolling boil. Salting the water generously seasons the pasta from the inside out as it cooks, enhancing the overall flavor of the dish.
~5 min
- 2
Add the pasta to the boiling water and cook according to package directions until al dente. Al dente pasta will have a slight bite to it, preventing it from becoming mushy when combined with the pesto.
~8 min
- 3
While the pasta is cooking, prepare the pesto. In a food processor, combine the fresh basil leaves, toasted walnuts, garlic cloves, and Parmesan cheese.
~2 min
- 4
Pulse the mixture until coarsely chopped. You want some texture in the pesto, so avoid over-processing into a completely smooth paste.
~1 min
- 5
With the food processor running, slowly drizzle in the olive oil until the pesto forms a smooth, but slightly chunky paste. The slow addition of oil helps emulsify the pesto, creating a creamy texture.
~1 min
- 6
Add the lemon juice and pulse to combine. The lemon juice brightens the flavors and helps prevent the basil from oxidizing and turning brown.
~0.5 min
- 7
Season the pesto with salt and black pepper to taste. Remember that Parmesan cheese is already salty, so start with a small amount and adjust as needed.
~0.5 min
- 8
Before draining the pasta, reserve about 1/2 cup of the pasta water. The starchy water will help bind the pesto to the pasta and create a creamy sauce.
0 - 9
Drain the pasta and immediately transfer it to a large bowl. Add the basil walnut pesto to the warm pasta.
~0.5 min
- 10
Toss the pasta and pesto together, adding a little of the reserved pasta water at a time until the sauce reaches your desired consistency. The heat from the pasta will slightly cook the pesto, releasing its aromas.
~1 min
- 11
Serve immediately, garnished with extra grated Parmesan cheese and a sprinkle of black pepper. The aroma of fresh basil and toasted walnuts will fill the air.
0
How Do I Know It's Ready?
Pasta should be al dente, meaning it has a slight bite to it. Pesto should be a vibrant green color and have a slightly chunky texture.
Frequently Asked Questions
Yes, you can make the pesto up to 2 days in advance and store it in an airtight container in the refrigerator. Cover the surface of the pesto with a thin layer of olive oil to prevent it from browning.
Final Thoughts
I hope you enjoy making this Emerald Basil Walnut Pesto Pasta: A Ligurian Dream as much as I do! It's a wonderful dish that's sure to become a favorite in your kitchen. If you try this recipe, I'd love to hear how it turned out – feel free to share your experience and any variations you tried!