This Cacio e Pepe recipe makes tasty use of those spare leeks

My first experience with cacio e pepe was a mistake. I saw it on a menu, thought, Pasta, cheese, pepper? Sold. I ordered by pointing at it, too afraid of garbling the pronunciation and revealing my inexperience, but I shouldn’t have worried. They didn’t know what they were doing either. What arrived on my plate was a gummy, gooey mess with nary a speck of pepper to be seen. I took a couple bites, then moved the rest of it around with a fork, like I’d regressed to childhood and was trying to convince my parents that I was eating. Then I gave up on the dish.

The true error was not in my (persistent, misguided) fear of making a verbal gaffe, nor in the restaurant’s bungling of the dish (maybe it was a bad night?), but in my decision to write off cacio e pepe as a result. Until, that is, I had a good – no, stellar – version of it at Maialino, in New York City, where I realised what I’d been missing out on. I’ve continued to order it at restaurants, but I’ve also learned that it’s an easy dish that can and should be made at home. Plus, thanks to Food52er Sara G, I’ve picked up on the idea of adding a little dose of green to the dish. She adds radish or baby turnip greens to hers, but I like adding thinly cut lengths of leek tops to mine.

Leek Top Cacio e Pepe

Serves 2 or 3

Ingredients
1 leek top, split in half and cut into 6-inch lengths
170g bucatini or spaghetti
3 tbsp extra virgin olive oil
2 tsp freshly ground black pepper
100g grated Grana Padano or Parmigiano Reggiano cheese
35g grated pecorino Romano cheese

Method
Fill a large pot with salted water (use 2 or 3 three-finger pinches of salt – it should taste like the sea) and bring it to a boil over medium-high heat.

Meanwhile, stack a couple of leek lengths on top of one another and make narrow cuts down the length of them, like you’re turning them into linguini. Once you get the hang of this, you can make your stack a little higher. Don’t stress out about it too much; they won’t all look perfect – it’s fine.

When the water is boiling, add the pasta and give it a stir. Take note of the instructions on the package; you’ll be subtracting 2 minutes from the cooking time. One minute before the pasta is done (so 3 minutes before the time on the package), add the shredded leek tops.

Drain the pasta and leek tops, reserving 1 cup of the cooking water.

Return the empty pot to the same burner and turn the heat to medium. Add the olive oil and pepper to the pot; let it sit until it smells fragrant, 30 seconds to 1 minute.

Add the drained pasta and leek tops to the pot, and using tongs, toss everything around to coat. Add ¼ cup of the reserved pasta water to the pot, sprinkle on about half of the cheese (you’ll end up with cheese clumps if you dump it all in one pile), and, using the tongs, toss to coat and melt the cheese. Repeat this step with another ¼ cup pasta water and the rest of the cheese.

You should now have a silky sauce coating all of the pasta and leek tops (the tops might require a little more tong action to distribute them evenly). If not, add a little more pasta water and toss everything again, then serve and eat immediately.

Extracted from Cooking with Scraps: Turn Your Peels, Cores, Rinds, and Stems into Delicious Meals by Lindsay-Jean Hard (Workman Publishing, approx €15). Copyright © 2018. Photographs by Penny De Los Santos.