THE heady scent of aromatic garlic and rosemary fills the kitchen long before a magnificent roast leg of lamb goes out to the table, and you can picture already all the trimmings of a perfect spring dinner: fresh fava beans and fat asparagus and tender new potatoes to go with all that succulent meat.
The favas are delicately cloaked with a light bechamel, the asparagus dressed simply with hard-cooked egg and anchovy, and those diminutive potatoes are accessorized with butter and fresh herbs -- chervil, dill and chives -- and finished with a sprinkle of fleur de sel. Luxurious, yes, but when these vegetables are handled with finesse, their freshness and delicate texture stand out.
The best way to treat the best of what the season has to offer is to let the beans and shoots and roots speak for themselves. And an unfussy preparation means less time in the kitchen too. Much of the preparation can be done ahead of time, and the asparagus and potatoes can work for a buffet.
With roast lamb as a centerpiece (spectacular but not labor-intensive), you want something special on the side, and shelling fava beans is well worth the trouble on this occasion.
You’ll need a big pile of pods to yield enough favas for a dinner party, but the work can be done as much as a day or two ahead and the shelled beans stored in the refrigerator until you’re ready to cook them.
There’s something gratifying about shelling favas. Slip open their pods, remove the beans and blanch them for 2 to 3 minutes. Then plunge them in cold water before peeling. It’s easy to pop them out of their skins.
You can also prepare the bechamel sauce a day ahead. The sauce is light enough that the favas aren’t smothered but makes them that much more luscious, giving them an herbal depth of flavor from thyme and tarragon that holds up to the aroma of lamb.
Treat bright green asparagus gently too, cooking the spears in simmering water just until tender and dressing them with hard-cooked egg along with anchovy, parsley, shallots and a squeeze of lemon juice.
Look for asparagus spears of about the same size so they reach tenderness in the same length of time.
And finally, the lightest possible potato dish made with small new potatoes -- red and white -- barely kissed by butter and showered with a confetti of bright green herbs. Tiny potatoes such as the white Klamath Pearl that work well for this dish are more perishable than the bigger kinds and should be used within a few days of purchase. No need to peel them, of course, just scrub, steam, drizzle with butter and toss with chopped herbs.