Combine all ingredients in a large processor until fine. Your may need to stop the processor every so often and push down the powder down from the sides so that everything mixes well.Transfer contents of the processor into an air tight container and store in a cool dry place.To Mix a Drink:Combine 2 heaping tablespoons of the pumpkin spice latte mix with about 1 ¼ cups of hot water in a mug.Stir it up so everything is well combined.Optional:Top with whipped cream, a sprinkle of cinnamon and some toffee bits.