01 - Preheat oven to 350°F. Line a muffin tin with paper liners.
02 - In a large bowl, whisk together all-purpose flour, matcha powder, granulated sugar, baking powder, baking soda, and salt until evenly combined.
03 - In a separate bowl, whisk together eggs, vegetable oil, whole milk, and vanilla extract until smooth.
04 - Pour the wet mixture into the dry mixture and stir just until incorporated; avoid overmixing.
05 - Divide batter evenly among muffin cups. Bake for 18 to 20 minutes, or until a toothpick inserted into the center comes out clean. Allow muffins to cool completely.
06 - In a medium bowl, whisk pumpkin puree, heavy cream, powdered sugar, ground cinnamon, ground ginger, ground nutmeg, and salt until smooth and creamy. Refrigerate until assembling.
07 - With an electric mixer or whisk, beat heavy whipping cream, powdered sugar, and vanilla extract in a chilled bowl until soft peaks form. Keep refrigerated until needed.
08 - Cut completely cooled matcha muffins into small cubes. In individual serving glasses or trifle dishes, layer muffin cubes, pumpkin cream, and whipped cream. Repeat layering as preferred.
09 - Garnish with roasted pumpkin seeds and a light dusting of matcha powder if desired. Serve immediately or refrigerate for up to 2 hours.