Preheat oven to 425 degrees F (218 degrees C)
Lightly spray donut pans with oil
Beat together butter, oil and sugars until light and fluffy.
Add the eggs one at a time and mix well. Stir in baking powder, baking soda, matcha green tea powder, salt and vanilla just until everything mixed.
Turn down your mixer and the flour a little bit at time and a little bit of the milk (dairy-free alternative) alternating between milk (dairy-free alternative) and flour just until all the flour and milk has been added. Do not over mix.
Place matcha batter into a piping bag or Ziploc bag, cut about a ½ inch tip off the end. Pipe the matcha batter into the greased donut pan, leaving about a ¼ inch from the top. They will rise so do not overfill too much.
Bake in oven for about 6-8 minutes. Start checking on them at 5-6 minutes mark and when the toothpick comes out clean they are done. Let the donuts rest for about 6 minutes in the donut pan. Carefully remove matcha donuts from the donut pan and cool on a wire rack.
Make the lemon icing- in a medium bowl combine powdered sugar, lemon juice and zest and stir into well mixed.
Drizzle lemon glaze over the top of the cooled matcha donuts. Set aside for about 30 minutes until icing is dry.
Enjoy! Can also be frozen in a sealed Tupperware for up to 3 months.