Preheat the oven to 180°C. Grease a 27 x 18cm ovenproof dish or tart tin with non-stick spray.
1. Tart: Mix the spices into the prepared cake mix and pour into the ovenproof dish or tart tin.
2. Sprinkle the flour over the pecan nuts and mix well – the flour will prevent the nuts from sinking into the tart. Sprinkle the pecan nuts over the tart, then bake for 20-25 minutes or until a testing skewer inserted into the middle comes out clean.