Preheat your oven to 350°F (175°C) and line your muffin tin with cupcake liners.
In a bowl, combine the flour, sugar, baking powder, salt, and chai spice blend. Whisk together until evenly mixed.
In a separate bowl, cream together the softened butter and sugar until light and fluffy.
Beat in the eggs, one at a time, making sure each one is fully incorporated before adding the next.
Stir in the milk and espresso powder, mixing well until combined.
Gradually fold in the dry mixture into the wet mixture just until there are no dry streaks—be careful not to overmix.
Use a spoon or an ice cream scoop to fill each cupcake liner about two-thirds full.
Bake for 18-20 minutes or until a toothpick inserted into the center comes out clean.
Let the cupcakes cool in the tin for about 5 minutes before transferring them to a wire rack to cool completely.
Once completely cooled, frost with your favorite buttercream or cream cheese frosting for extra indulgence.