For the curried mango sauce: Pour the oil into a medium-size saucepan
over medium heat and, when it gets hot, add the garlic, ginger
and onions. Cook until the onions
are very soft and beginning to caramelize
, 3 to 5 minutes. Add the garam masala, coriander, cumin, turmeric and cayenne pepper and stir as the spices
toast and become aromatic
, about 1 minute. Add the mango
puree and stir well to combine. Season with salt and pepper and then let simmer
for about 15 minutes. Keep warm.
For the crusted lamb rack: Preheat the oven to 400 degrees F. Oil a baking pan.
Mix the fenugreek, coriander, garam masala, fennel, paprika
, salt and pepper together in a shallow dish. Then press the lamb rack into it, rolling it back and forth making sure it is well coated. Place in the prepared pan and roast
until it reaches the desired level of doneness, 15 to 20 minutes for medium-rare. Let rest before slicing.
Serve the lamb with the mango sauce.