In a small saucepan, warm 1 cup olive oil, ½ cup chopped garlic, crushed coffee beans, rosemary and thyme until herbs just begin to sizzle. Remove from heat and cool. Place lamb in a large bowl and pour marinade over the lamb, filling any little cavities with pieces of garlic/herbs. Cover and refrigerate overnight.
Remove lamb from refrigerator 1 hour before cooking. Preheat oven to 450°.
Place shallots in a flameproof roasting pan with quince, cranberries and celery. Add ¼ cup marinade from the lamb and toss. Place lamb atop mixture (be sure to reserve any remaining marinade). Generously season lamb with salt and pepper.
Roast lamb for 15 minutes. Reduce heat to 325°. After 40 minutes check lamb with an instantread thermometer. For medium rare, remove lamb when it reaches 125° (or 130° for medium). It will reach 135° (or 145° for medium) while resting. Transfer lamb to a warm resting plate and cover loosely with foil.
For the roasted vegetables, return oven to 450°. In a large roasting pan, toss kohlrabi, turnip, Brussels sprouts, shallots and garlic cloves with ¼ cup remaining marinade. Season well with salt and pepper. Bake for 15 minutes or until vegetables just begin to brown and caramelize.
As the veggies roast, heat lamb roasting pan on high heat for about 2 minutes. As things start to bubble, add the sherry and reduce by half (about 2 minutes), then add stock. Continue to boil and reduce liquid to 1 cup. Season to taste.
To serve, you can either strain the sauce or serve it over the lamb with its fruits and veggies, according to your liking. Serve lamb alongside the additional roasted vegetables.
About this recipe
WINE PAIRING: Chateau Magneau, Graves, France. This very dry wine with only hints of red fruit flavors has loads of minerality from the soil, which makes it an excellent pairing with lamb and root veggies. It comes from the sub-region of Graves known for its granite gravel-rich soil. With even amounts of Cabernet Sauvignon and Merlot, it’s a classic and distinctive Bordeaux.
—Eric Taylor, Bottles Fine Wines & Spirits, Providence