Preheat your oven to 350°F (180°C) and line a baking sheet with parchment paper.
In a medium bowl, whisk together the flour, matcha powder, baking soda, and salt until well combined.
In a large bowl, using an electric mixer, cream together the butter, granulated sugar, and brown sugar until light and fluffy, about 2-3 minutes.
Add the egg and vanilla extract to the butter mixture and beat until well combined.
Gradually mix in the dry ingredients until just combined.
Fold in the chocolate chips until evenly distributed throughout the dough.
Using a cookie scoop or spoon, portion the dough into 1 1/2 tablespoon-sized balls and place them onto the prepared baking sheet, leaving about 2 inches of space between each cookie.
Bake for 10-12 minutes, or until the edges are lightly golden and the centers are set.
Remove the cookies from the oven and let them cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely. Serve and enjoy!