Preheat the oven to 400°F.
Mix together the cumin, cinnamon, turmeric, cayenne pepper, paprika, garlic powder, salt and pepper in a small bowl.
Place the potato chunks into a large bowl and sprinkle with the spice mix from step two. Toss to coat the potatoes evenly.
Place the potatoes on a parchment-lined baking sheet in an even layer. Drizzle with olive oil and bake for 40 minutes, flipping halfway through to ensure even cooking.
Once cooked, remove from the oven and top with chopped cilantro before serving.