For the pickle juice mayo dressing:
Dissolve sugar in pickle juice, combine with mayonnaise and mix well. Add remaining ingredients and stir to combine. Season to taste and set aside.
For the roosterkoek:
Prepare medium-heat braai. Divide dough into 8 equal portions and shape into flat discs. Place on lightly floured surface and allow to rise 10 minutes. Grill until golden brown and cooked through, about 5-7 minutes per side.
For the blackened pork neck steaks:
Add extra wood/charcoal for medium-high heat. Dip each steak in melted butter and coat generously with spice mixture. Grill on high heat, turning occasionally, until deeply caramelized and cooked to preference, about 4-5 minutes per side. Rest 8-10 minutes before slicing.