In a small saucepan over medium heat, combine all of the spices except stevia and toast for 40 seconds or until seeds begin to sizzle and pop. Set aside to cool.
Using a coffee grinder or food processor, grind toasted mixture. Add stevia and transfer to a clean jar with lid and store in cool, dry place.
In a small saucepan over medium heat, blend chai blend, milk and water. Bring to a boil, reduce the heat and simmer for 10 minutes. Turn off heat and add green tea. Cover and leave pan on burner. Steep for 3-5 minutes and strain into cup. Sprinkle with nutmeg and serve,.