Grind the pistachios (or use pre-ground ones) in a spice grinder or food processor until finely ground, but don’t over-process.
Mix the ground pistachios, Parmesan, olive oil, and a pinch of salt to make a paste.
Once the water boils, add the pasta and cook for 2 minutes less than the package time.
In a pan, melt the butter with the sage and garlic.
Once the pasta is done, transfer it to the pan with some pasta water.
Stir in the pistachio paste until smooth, adding more pasta water if needed. Let it cook for about 2 minutes, making sure it doesn’t dry up.
Remove from heat, taste for seasoning, and squeeze in lemon juice.
Serve with grated Parmesan, lemon zest, and chopped pistachios.
Course Main Course
Cuisine Italian
Keyword creamy pistachio pasta, easy pasta recipe, Italian pistachio pasta, nutty pasta sauce, pasta with pistachio sauce, pistachio pasta, pistachio pasta recipe