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1
Preheat the grill to medium-high(or turn on the oven to 400*F.).
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2
Place the potatoes in the center of a double thickness of heavy aluminum foil.
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3
Toss with 1 to 1 1/2 tablespoons of the oil and season lightly with salt and pepper.
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4
Wrap up in the foil, turning up the edges to seal.
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5
Place the potatoes on the grill and cook until tender, 25 to 30 minutes.
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6
Remove and cut into wedges.
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7
Meanwhile, brush the fennel and onion slices on both sides with the remaining 1 1/2 tablespoons olive oil and lightly season with salt and pepper.
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8
Arrange on the grill and cook until marked and tender, and starting to turn golden brown, 4 to 5 minutes per side(or turn on broiler and broil,turning and watching closely).
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9
Remove from the grill and place on a cutting board.
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10
Roughly chop.
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11
Mix the potatoes, fennel and onions in a large bowl and while warm, toss with the Buttermilk Dressing.
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12
Adjust the seasoning, to taste, and serve immediately.
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13
Herb Buttermilk Dressing:.
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14
In a bowl, whisk together the buttermilk, sour cream, vinegar, and hot pepper sauce.
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15
Add the scallions, parsley, dill and oregano.
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16
Add the chopped fennel fronds, to taste (1 to 2 tablespoons).
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17
Adjust seasoning with salt and pepper.
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18
Pour over the vegetables and toss to coat.
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19
Enjoy!