01 -  Preheat oven to 375°F. Line a standard 12-cup muffin tin with paper liners or lightly grease each cup. 
 02 -  In a large bowl, whisk together all-purpose flour, matcha powder, baking powder, baking soda, salt, and granulated sugar until evenly combined. 
 03 -  In a separate bowl, whisk pumpkin purée, eggs, whole milk, melted butter, and vanilla extract until smooth. 
 04 -  Pour wet ingredient mixture into the dry component bowl. Gently fold together with a spatula just until fully incorporated. Avoid overmixing to ensure optimal texture. 
 05 -  Divide batter evenly among prepared muffin cups, filling each about three-quarters full. Bake for 20 to 22 minutes, or until a toothpick inserted in the center comes out clean. 
 06 -  Allow muffins to cool in the pan for 5 minutes, then transfer to a wire rack to cool completely before applying glaze. 
 07 -  For the optional glaze, mix powdered sugar, milk, and vanilla extract until smooth. Drizzle the glaze over cooled muffins prior to serving.