Start by making your flax egg. In a small bowl, whisk together 3 tablespoons of ground flax seeds with 6 tablespoons of room temperature water. Set aside to let it thicken.
Heat 1/2 cup of oat milk. I heat it in the microwave for 1 minute in a glass measuring cup. Add the chai tea bag to the warm milk and let it steep for 20 minutes or until it gets to room temperature.
Meanwhile, in a small mixing bowl, mix all the chai spices together.
Preheat the oven to 350℉. Line a 12-cup muffin pan with cupcake liners. Set aside.
In a large mixing bowl, mix your flour, 3 1/2 teaspoons of chai spice mix, baking powder, baking soda and salt. Set aside.
Using a stand mixer of hand mixer, beat the sugar and 1/2 cup of vegan butter together until smooth, about 2 minutes. Add the flax egg, vegan yogurt, chai milk and vanilla extract. Whisk together until creamy, about 2 minutes. Scrape the sides as needed.
With the mixer running on low speed, add the dry ingredients and whisk until just combined. Don't over or under mix.
Scoop the batter into the prepared cupcake liners. It should make 12 cupcakes, filling each liner *almost* to the top (see photos).
Bake for 22 minutes or until a toothpick inserted in the middle comes out clean. Let them cool completely before frosting.