Orecchiette Verde

For the pasta and vegetables

• 400 g orecchiette
• 300 g green beans (haricots verts), stem ends trimmed
• 2 spring onions, thinly sliced on the bias, white and green parts kept separate
• 50 g baby spinach, washed and roughly chopped
• 2 tbsp olive oil, for the pan
• 40 g coarse salt, for 4 L pasta water (1%)

For the arugula pesto

• 60 g arugula (rucola), toughest stems removed
• 25 g basil leaves, about 1 packed cup
• 30 g pine nuts, toasted
• 1 garlic, large, microplaned
• 1 lemon, ½ lemon — juice and zest
• 40 g Parmigiano-Reggiano, finely grated, for the pesto
• 80 ml extra-virgin olive oil, for the pesto
• to taste fine salt
• to taste black pepper, freshly ground

To serve

• 60 g Parmigiano-Reggiano, shaved with a peeler
• to taste extra-virgin olive oil, your best, for drizzling
• to taste basil leaves, a few whole, to finish(optional)

Mise en place

1. 1

   Bring 4 L of water to a hard boil in your largest pot, salted with 40 g coarse salt (1% by weight). You reuse this water for the green beans and the pasta, so the starch matters. Set up an ice bath right next to the stove: a large bowl, half ice, half cold water.

   8mlarge potlarge bowl

   Salt the water at 1% by weight — non-negotiable. Under-salted pasta water is the single most common ruin of a pasta dish.

2. 2

   Trim the green beans (stem ends only, leave the tails). Wash and spin the arugula and basil truly dry — wet leaves dilute the paste. Toast the pine nuts in a dry pan over medium-low heat until just golden and fragrant, then tip onto a cold plate immediately. Microplane the garlic with the lemon zest and juice into a small bowl and let it sit — this soak takes the raw edge off the garlic. Grate 40 g Parmesan for the pesto; shave the rest for serving. Slice the spring onions, keeping white and green parts separate. Roughly chop the spinach.

   12m

   Tip: Tip the toasted pine nuts onto a cold plate the second they colour — carryover heat will burn them in the pan.

Make the arugula pesto

1. 3

   Combine the arugula, basil, toasted pine nuts, garlic-lemon mixture, 40 g grated Parmesan, ¼ tsp fine salt and a pinch of black pepper in a food processor. Pulse 5–6 times to break everything down, then run continuously while drizzling in 80 ml extra-virgin olive oil in a thin stream. Stop within about 30 seconds of total run time — emulsified but still with visible texture. Taste: it should be punchy, peppery, lemony and slightly bitter. Cover and leave at room temperature.

   5mfood processor

   Do not over-process. Running the processor too long heats the leaves, volatilises the aromatics and turns the pesto dull and bitter. 20–30 seconds total run time is the ceiling.

   Arugula (Rucola) Pesto

   Tip: Pesto going onto hot pasta should never come out of the fridge cold — keep it at room temperature so it doesn't shock the emulsion.

Blanch and shock the green beans

1. 4

   Drop the green beans into the hard-boiling salted water and cook 3 minutes for standard haricots verts (4 if thicker, 2 if very slim) — they should be snappy-tender. Lift them out with a spider and plunge straight into the ice bath. Leave 2 minutes, then drain on a towel and cut into bite-size 4 cm lengths.

   5mspider

   The cold shock locks the chlorophyll and stops carryover cooking — this is what keeps the beans visibly bright green at serving instead of olive-drab. Don't skip it.

   Blanch-and-Shock for Green Vegetables

   Tip: Bite-test one bean 30 seconds early to calibrate the timing.

Cook the pasta

1. 5

   Bring the same water back to a hard boil. Add the 400 g orecchiette and set a timer for 2 minutes less than the package says (for an 11-minute pasta, set 9). When the timer goes, reserve 300 ml of pasta water in a heatproof jug, then drain the pasta but do not rinse.

   9m

   Reserve more pasta water than you think you need — you can always discard. Never rinse the pasta; you'd wash off the surface starch the emulsion depends on.

Mantecatura — the finishing

1. 6

   While the pasta cooks, set your largest sauté pan over medium heat with 2 tbsp olive oil. Add the white parts of the spring onions and a pinch of salt; cook 1 minute until just softened, no colour. Add the green beans and toss 1 minute to warm through.

   2mmediumlarge sauté pan
2. 7

   Tip the drained pasta straight into the pan. Add 150 ml of the reserved pasta water and the spinach. Toss vigorously for 30 seconds — the pasta finishes cooking here and sheds more starch, building the body of the sauce.

   1mmedium

   Mantecatura (Pasta Sauce Emulsification)
3. 8

   Pull the pan off the heat. Add all of the arugula pesto and the green parts of the spring onions. Toss continuously for 30–45 seconds, adding more pasta water 2 tablespoons at a time as needed, until you have a glossy, creamy coating that clings to each orecchiette rather than pooling. Taste and adjust with salt, more lemon juice, or a few twists of pepper.

   1m

   The pesto goes in off the heat. The leaves' aromatics are volatile and dull if simmered, and the Parmesan in the pesto turns grainy if it boils. The residual heat of the pasta is plenty to warm the pesto through.

   Mantecatura (Pasta Sauce Emulsification)

   Tip: If it looks dry, add water; if it pools, keep tossing — agitation is what builds the emulsion.

Serve

1. 9

   Pile into warm wide bowls. Top with the shaved Parmesan, a final grind of pepper, a small drizzle of your best olive oil and, if you have it, a few torn basil leaves. Serve immediately.

   1m

   Pesto pasta waits for no one — even 5 minutes in a serving bowl and the sauce starts to break. Serve within 90 seconds of plating.