Why Spring Greens Reward a Lighter Touch

There is a moment in the British year — somewhere between the first mild week of March and the last cold snap of May — when the greens arriving in the shops change character completely. The tight, hefty January cabbages give way to looser, sweeter heads: proper spring greens, young curly kale, the first tender spinach. These are leaves that need almost nothing doing to them. A long simmer in a deep pan of water is the quickest way to lose everything that makes them worth eating.

What they want instead is heat, speed and a little fat. A quick pan steam — a splash of water, a lid, four or five minutes at most — keeps the leaves bright and slightly firm, with just enough bite left in the stalks. Add the zest of a lemon and a decent knob of butter at the end, and you have a side dish that will hold its own against a roast chicken, a piece of grilled fish or nothing more than a slice of good bread.

Choosing Your Greens

Spring greens are not one vegetable but a family of them, and they behave slightly differently in the pan. Knowing which you have in the bag saves a lot of guesswork.

• Spring cabbage — sold as loose leaves or a small pointed heart. Sweet, mild, cooks in three minutes. The stalks are thin enough to leave in.
• Young kale — smaller leaves, softer stems than the winter stuff. Strip the stalks if they snap rather than bend.
• Spinach — collapses to almost nothing, so buy twice what you think you need. A 250g bag serves two, barely.
• Wild garlic — in season for a few precious weeks. Treat it as spinach, but reduce the lemon, as it brings its own sharpness.

Whatever you buy, look for leaves that are springy rather than limp, with no yellowing at the edges and no sliminess in the bag. If you are not cooking them the same day, wrap them in a clean tea towel and keep them in the salad drawer. Wet leaves in a plastic bag will turn to slime within forty-eight hours.

The Quick Pan Steam

You need a wide frying pan or sauté pan with a lid — something big enough to hold the leaves without packing them down too hard. A large pan with a small quantity of greens steams far better than a small pan stuffed full.

Start by washing the greens well. Spring cabbage in particular traps grit right down in the leaf bases, so fill the sink, dunk the leaves about, then lift them out rather than tipping the water out over them. Shake off the worst of the water but do not dry them — that clinging moisture is part of the cooking liquid.

Set the pan over a medium-high heat and add a tablespoon of water. Once it is bubbling, add the greens with a good pinch of sea salt flakes. Clamp on the lid and leave them alone for two minutes. Give the pan a shake, turn the leaves over with tongs, and cook for another two to three minutes. Cabbage and spinach will be done; kale may want one minute more. The leaves should be wilted but still a deep, vivid green, with the stalks just tender.

If there is liquid pooling in the bottom of the pan, take the lid off and let it bubble away for thirty seconds. You want the greens glossy, not sitting in a puddle.

Lemon and Butter: Getting the Balance Right

Now, off the heat, add 25g of unsalted butter and the finely grated zest of half a lemon. Toss the leaves until the butter melts and coats every one of them. Taste, then add a squeeze of lemon juice — no more than a teaspoon to begin with, because the zest has already done a lot of the work and too much juice turns the whole thing sour and grey.

Finish with salt and a good grind of black pepper. If you want to push it further, grate over a little nutmeg, or scatter in a handful of toasted flaked almonds or some crisp fried breadcrumbs for texture. A spoonful of crème fraîche stirred through at the last moment turns the same pan of greens into something closer to a sauce, which is useful if you are serving them with plainly grilled fish.

Two points worth remembering: salt early, acid late. Salting the greens at the start of cooking seasons them properly; adding the lemon juice at the end keeps the colour bright.

A Few Good Variations

• Mustard and cream — a teaspoon of Dijon and two tablespoons of double cream instead of the lemon, reduced for a minute until it coats the leaves.
• Garlic and chilli — soften two sliced cloves and a pinch of chilli flakes in the butter first, then add the greens and carry on as normal.
• Anchovy — melt two chopped anchovy fillets into the butter. Nobody will identify them, everybody will ask what you did.
• Nutmeg and orange — swap the lemon zest for orange and add a little grated nutmeg. Very good with roast pork.

What to Serve Alongside

These greens are at their best with something rich. A roast shoulder of lamb, sausages and mash, a chicken pie, a piece of smoked haddock poached in milk — anything that needs cutting through. They also make a perfectly good lunch on their own, piled onto toast with a poached egg on top.

Any leftovers will keep for a day in the fridge and are excellent chopped roughly and folded through hot pasta with an extra knob of butter and a little grated cheese. Do not reheat them in a pan for long, though — a minute is plenty, or they will lose the very colour and texture you cooked them for in the first place.