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1
Preheat the oven to 400 degrees F.
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2
Using your hands, rub the lamb all over with the olive oil.
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3
Pat the garlic and herbs evenly all over the surface of the meat.
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4
Season the meat with the salt and pepper and place the lamb in a roasting pan.
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5
Put the lamb in the oven and roast for 30 minutes.
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6
Reduce the oven temperature to 350 degrees F and continue to cook for about 1 hour longer for medium-rare, or until an instant-read thermometer inserted into the center of the roast registers about 145 degrees F. Be careful that the thermometer does not touch the bone.
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7
Allow to rest for 10 minutes before carving.
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8
Slice thinly around the bone and serve.
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9
While the lamb is roasting, heat the Espagnole sauce in a saucepan over medium heat.
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10
Bring to a boil and continue to cook until the sauce is reduced in volume by 1/4.
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11
Stir in the Madeira and continue to simmer until sauce is thick enough to coat the back of a spoon, 6 to 8 minutes.
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12
Whisk in the butter and truffles.
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13
Reduce the heat to low and keep warm.
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14
(Do not allow the sauce to boil.)
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15
Also while the lamb is roasting, combine the cream and cheese in a saucepan over medium heat.
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16
Stir until the cheese melts.
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17
Add the potatoes and mash well.
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18
Season with salt and white pepper to taste.
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19
Keep warm until ready to serve.
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20
When the lamb has rested and is carved and ready to serve, spoon the potatoes in the center of each plate.
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21
Arrange the slices of lamb around the potatoes.
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22
Spoon the sauce around the potatoes.
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23
Garnish with the spinach, if desired.
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24
In a stockpot, whisk the hot stock into the roux.
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25
In a large saute pan, heat the bacon fat.
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26
Add the vegetables, season with salt and pepper, and saute until wilted, about 5 minutes.
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27
Stir in the tomato puree and cook for about 5 minutes.
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28
Add the tomato/vegetable mixture to the stock/roux mixture.
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29
Add the bay leaf, thyme, and peppercorns and continue to simmer, skimming as needed, for about 45 minutes.
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30
Taste and adjust seasoning with salt and pepper.
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31
Strain the sauce through a fine mesh sieve and discard solids.