01 - Set the oven to 350°F (175°C) and line a baking sheet with parchment paper.
02 - Whisk together the all-purpose flour, matcha powder, baking soda, and salt in a medium bowl.
03 - In a large bowl, whisk the melted coconut oil, cane sugar, non-dairy milk, and vanilla extract until smooth and uniform.
04 - Gradually incorporate the dry mixture into the wet ingredients, mixing gently until just combined; avoid overmixing.
05 - Fold in vegan white chocolate chips or chopped pistachios if desired.
06 - Scoop tablespoon-sized portions of dough onto the prepared baking sheet, spacing each about 2 inches apart.
07 - Bake for 10 to 12 minutes until edges are set and centers appear slightly underbaked.
08 - Let the cookies rest on the baking sheet for 5 minutes before transferring to a wire rack to cool completely.