Preheat oven to 375F (convection roast or bake is ideal).
Line a lipped cookie sheet with parchment paper.
In a small bowl, combine paprika, turmeric, coriander, onion powder, cinnamon, cardamom, garlic, ginger, salt, and pepper.
Put chicken thighs in a medium to large bowl. Toss the thighs with the spice mix to create a dry rub. Then toss in the macadamia nut oil to lightly coat the chicken.
Place the chicken thighs on the sheet pan along with the lemon halves. Roast in the oven about 20-25 minutes until fully cooked and nicely golden. The lemons should be roasted too.
Remove from the oven, let sit a few minutes. Squeeze the roasted lemons over the chicken (use tongs if too hot).
Garnish with chopped parsley & cilantro.