Mix together all of the spices, coarsely grinding them in a blender or coffee grinder. You want to use smaller pieces of the spices to have them infuse properly, but at the same time, don't want to end up with a fine powder.
Mix together the coarsely ground spices with the tea leaves of your choice and add in crushed up stevia leaves if desired.
Your chai tea is now ready for using. You can either spoon in around a tsp. of the mixture into teabags to have ready to use chai teabags for individual servings, or add the desired amount to a teapot.
The stevia is optional and adds sweetness to the tea blend without needing to add other sweeteners. This recipe makes around 2 cups of the chai tea blend. That's enough to make around 100 cups of tea if you are using one teaspoon of the blend for each serving. Adjust the amount used to suit your taste. Recipe nutritional information is calculated based on full amounts of all of the leaves and spices. Because you will be drinking an infusion of the tea and spices rather than ingesting them all, actual nutritional information amounts for brewed tea will be lower.