Peel and finely chop the garlic. Mix garlic, chili flakes, paprika powder, 6 tablespoons lemon juice, vinegar, 1 tablespoon salt and 4 tablespoons olive oil
Wash the chicken, dab dry and cut open lengthwise on the back, press apart. Coat all around with prepared marinade. Place the chicken on the oven rack. Bake in the preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: see manufacturer) with a fat pan underneath for approx. 2 hours. Spread the rest of the marinade every 30 minutes
In the meantime, peel and clean the parsnips and cut them into thin slices (approx. 2 mm). Peel and wash the potatoes and cut them into thin slices (approx. 2 mm). Wash the rosemary, shake dry. Mix potatoes, parsnips and 2 tablespoons of olive oil. Season with salt. After approx. 30 minutes, spread the slices on the fat pan of the oven and the grill
For the dip, wash coriander and parsley, shake dry and cut leaves from the stalks. Wash and clean the chilli, cut lengthwise, remove seeds. Chop herbs and chilli finely. Mix sour cream, mayonnaise, 1 tablespoon lemon juice, 1 tablespoon olive oil and herbs and chilli. Season to taste with salt