In a small saucepan, bring water to a boil. Turn off the heat.
Steep a tea bag 3-5 minutes. Discard the tea bag and pour tea into a mug. If using chai spice mix, add it to the mug.
Pour hot coffee into the mug with tea.
Pour chai simple syrup or maple syrup into the mug. Mix well.
Froth soy milk. If you don't have a milk frother you can mix the soy milk in a blender* or shake it in mason jar with a secure lid and towel over the top.
Pour soy milk over the coffee. Spoon foam on top.
Notes
*Do NOT put hot soy milk in a Nutribullet! If you want to use a Nutribullet, you'll need to blend cold soy milk because it doesn't do well with hot liquids.