01 -
Bring salted water to a boil, cook pasta following package instructions until al dente, then drain in a colander.
02 -
Heat olive oil or water/vegetable broth in a small pan over medium-low heat, sauté minced garlic for 2–3 minutes while stirring frequently; transfer to blender.
03 -
Zest one lemon, avoiding the white pith, and add to blender along with water, cashews, arrowroot starch, and sea salt; blend until completely smooth.
04 -
Cut and squeeze lemons to obtain approximately 80 ml fresh juice; set aside.
05 -
Pour blended sauce into the pasta pot, whisk constantly over medium heat until thickened, about 5 minutes; remove from heat and whisk in lemon juice.
06 -
Add cooked pasta to the sauce, stir to combine evenly; season to taste with black pepper and additional salt if needed.
07 -
Plate the pasta and garnish with fresh basil or parsley and vegan Parmesan if desired.