Servings: Serves 8
1. Lay two sheets of heavy-duty aluminum foil, each 16 to 18 inches long, on top of each other, and fold up the sides, creating a bowl shape with a rounded base about 9 inches across. Place the potatoes in the foil bowl. At this point, they should be in a snug even layer. Top with the butter, Old Bay, pepper flakes, thyme, 1⁄2 cup of the dill, and black pepper. Pour in the water. Gather the sides of the foil bowl, bringing them together to create a sealed rounded packet about 6 to 7 inches across.
2. Place directly on hot coals and cook for 20 to 30 minutes or cook in a 350°F barbecue for about 1 hour to 1 hour 15 minutes, or until tender when pierced with a paring knife.
3. Carefully open the packet and transfer the potatoes to a serving bowl, removing the cooked herbs. Garnish with the reserved 1⁄4 cup of dill. Serve with the mustard and fleur de sel on the side.
From Serious Barbecue by Adam Perry Lang. Copyright © 2009. Published by Hyperion. Available wherever books are sold. All rights reserved.