In a small saucepan, whisk together the oat milk and spices, add the tea bag, and heat over medium heat until boiling, remove from heat, and steep for 2 minutes. Remove the tea bag and pour into a mug and enjoy! Add in any optional sweeteners such as brown sugar, vanilla syrup, or maple syrup. (Pour your chai tea mixture through a fine mesh strainer or coffee filter after heating to filter out the spices, otherwise they settle in the bottom of your cup.)