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1
In a large bowl, combine the salt, 1 teaspoon of the paprika, 1/2 teaspoon of the onion powder, and 1/2 teaspoon of the garlic powder.
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2
Add the buttermilk and whisk until the salt is completely dissolved and the spices are dispersed in the liquid.
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3
Cut the chicken lengthwise into about 1-inch-wide strips.
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4
Add to the marinade and let stand at room temperature for 30 minutes.
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5
(Do not marinate any longer or the chicken will be too salty.
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6
If you can't cook it right at the 30-minute mark, remove the chicken from the marinade and refrigerate until ready to continue.)
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7
In a large shallow dish (a 9 by 13-inch baking dish works well), combine the bread crumbs, the remaining 1 teaspoon paprika, the remaining 1/2 teaspoon of onion powder, and the remaining 1/2 teaspoon of the garlic powder.
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8
Add the 2 tablespoons oil and toss well to coat.
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9
Whisk together the egg whites and mustard in a second large shallow dish.
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10
Season both mixtures with pepper.
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11
Preheat the oven to 350 degrees F. Line a rimmed baking sheet with aluminum foil, then set an ovenproof rack on it.
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12
Coat the rack with nonstick cooking spray.
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13
Remove the chicken from the marinade, shaking off any excess, and thread onto sixteen 12-inch bamboo skewers, dividing the meat evenly, about 1 strip per skewer.
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14
Dip the chicken into the egg mixture, coating both sides.
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15
Place in the bread crumb mixture one skewer at a time, sprinkle with crumbs to cover, and press so the coating adheres to both sides.
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16
Gently shake off any excess crumbs and place the skewers on the prepared rack.
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17
Bake the chicken, turning halfway through, until golden brown and the juices run clear, about 25 minutes.
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18
Serve warm with the dipping sauce.
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19
Put the vinegar, onion, garlic, honey, and mustard in the bowl of a food processor fitted with the metal blade.
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20
Pulse until smooth.
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21
With the motor running, add the oil in a slow steady stream until thick and emulsified.
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22
Taste and adjust for seasoning with salt and pepper.
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23
Store in an airtight container for up to 3 days.
