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1
Preheat the oven to 375 and position shelves in the upper and lower thirds.
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2
In a bowl, combine the garlic powder, onion powder, pepper and 1 1/2 tablespoons of salt.
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3
Set the ribs on 2 rimmed baking sheets and rub with the spices.
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4
Cover with foil and roast for 1 hour and 30 minutes, until tender, switching the pans halfway through.
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5
Pour off the liquid in the pans.
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6
Meanwhile, in a large saucepan, melt the butter.
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7
Tie the sage and thyme sprigs together with kitchen string.
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8
Add the onion, garlic and herb bundle to the saucepan and cook over moderate heat until the onion is softened, 8 minutes.
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9
Add the vinegar and bring to a boil.
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10
Add the Perfect Blueberry Syrup and hot sauce and simmer over moderately low heat until reduced to 1 1/2 cups, 10 minutes.
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11
Discard the herb bundle.
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12
Preheat the broiler.
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13
Working with one sheet of ribs at a time, brush the underside of each rack with some glaze and broil until browned.
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14
Flip the ribs and repeat on the other side.
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15
Transfer the baking sheet to the bottom shelf of the oven.
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16
Repeat with the remaining ribs.
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17
Transfer the ribs to a work surface and slice between the bones.
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18
Mound the ribs on a platter.
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19
Pass the remaining glaze at the table.