Preheat oven to 425°F.
Peel, deseed, and cut the butternut squash into one-inch cubes.
In a large bowl, add the cubed butternut squash, oil and spices and mix thoroughly with your hands until well coated.
Spread the squash onto a lined baking sheet in an even layer.
Bake for 20 minutes, give the squash a stir and then bake for another 20 minutes.
The squash should be fork tender, but not mushy.