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1
Blend all spices to powder in grinder or mill.
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2
Transfer spice rub to small bowl.
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3
Heat oil in heavy large pot over medium-high heat.
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4
Add bones; saut&e until brown, about 10 minutes.
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5
Add celery, onion, garlic, ginger and bay leaves.
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6
Reduce heat to medium; saut&e until celery is tender, about 5 minutes.
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7
Mix in tomatoes and 2 tablespoons spice rub; stir 2 minutes.
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8
Add broth, wine and mint.
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9
Bring to boil.
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10
Reduce heat to medium-low; cover and simmer 1 hours.
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11
Strain into medium saucepan, pressing hard on solids in sieve.
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12
Spoon fat off top of broth; reserve fat for use with lamb.
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13
Boil broth until reduced to 1 cups, about 25 minutes.
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14
Season sauce to taste with salt and pepper; set aside.
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15
Brush each lamb rack with some of reserved lamb fat.
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16
Sprinkle each rack with salt and pepper; rub each with 1 tablespoon spice rub.
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17
Place on rimmed baking sheet.
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18
Let stand at room temperature 2 hours.
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19
(Sauce and lamb can be prepared 1 day ahead.
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20
Cover separately; chill.
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21
Bring lamb to room temperature before continuing.)
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22
Preheat oven to 400F Heat large skillet over high heat.
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23
Sear 1 lamb rack on all sides until brown, about 8 minutes.
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24
Return to baking sheet.
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25
Repeat with remaining lamb racks.
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26
Roast lamb until thermometer inserted into center registers 125F for rare, about 25 minutes.
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27
Rewarm sauce.
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28
Cut lamb between bones into chops.
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29
Divide lamb among 6 plates.
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30
Spoon sauce over lamb.