Cut off and discard the woody end of 1½ pounds asparagus (about about 1 inch or 2.5 cm). Cut the spears into discs and leave the tips whole.In a large skillet, sauté 1 small onion (chopped) in 2 tablespoons extra virgin olive oil for 3 minutes.Add asparagus, 3 cloves garlic (grated), ¾ teaspoon salt, and ⅛ teaspoon black pepper, and cook for 5 minutes or until the asparagus are bright green and fork-tender. Add 1 cup of water after 1 minute.
To a food processor, add half of the cooked asparagus, ½ cup fresh basil, ½ cup grated parmesan, the juice of ½ lemon, 2 tablespoons of water, and blend until creamy.Cook the pasta in plenty of salted boiling water as per package instructions.
Add the sauce back to the skillet with the remaining asparagus, add the pasta, and 1/2 cup of reserved pasta water.Stir until creamy adding more reserve cooking water and parmesan if necessary.Taste and adjust for salt before serving with a drizzle of extra virgin olive oil and a grating of lemon zest.
SUBSTITUTIONS
Parmesan cheese: substitute non-dairy cheese if required by your diet.
Pasta: this recipe works with gluten-free pasta.
Fresh basil: substitute 3 sprig fresh thyme or fresh parsley.
Asparagus: you can use zucchini the same way.
TIPSHow much pasta per person?
3.5 ounces (100 grams) per person if the main meal;
2.8/3 ounces (80/90 grams) per person if part of a 2 - 3 course meal;
2/2.5 ounces (60/70 grams) per person if part of a 3+ course meal.
Water to salt to pasta ratios:
8 ounces of pasta (230 grams): cook pasta in 2 quarts of boiling water (8 cups or 2 Liters) with 1 tablespoon of salt (15 grams). Serves 2 - 3 people.
12 ounces of pasta (340 grams):cook pasta in 3 quarts of boiling water (12 cups or 3 Liters) with 1 ½ tablespoons of salt (21 grams). Serves 4 people.
1 pound of pasta (450 grams): cook pasta in 1 gallon of boiling water (16 cups or 4 Liters) with 2 tablespoons of salt (30 grams). Serves 5-6 people.
STORAGE
Make ahead: Best enjoyed fresh; not recommended for advance prep.
Refrigerate: Let cool in the skillet before storing in an airtight container for up to 3 days.
Reheat: Warm in the microwave or skillet with a bit of water.