Preheat oven to 350°F. Line muffin baking pan with cupcake liners. Use a whisk to combine flour, baking powder, baking soda, and salt. Sift together. Set aside. In another small bowl, whisk whole egg with egg white. Set aside.
Cut the butter into pieces and place in an electric mixing bowl. Beat for 1 minute to soften. Gradually add remaining 1 cup of sugar and beat at high speed for about 3 minutes. Add in egg mixture, beating constantly for about 2 minutes.
On low speed, beat in a third of the flour mixture. On medium-high speed, beat in half of the yogurt. On low speed, beat in half of the remaining flour. On high speed, beat in the rest of the yogurt and the vanilla. On low speed, beat in the remaining flour. Add matcha powder to the yogurt batter in the mixing bowl.
Bake for about 30-35 minutes until toothpick inserted in comes out clean.
The nutrition information provided are only estimates based on an online nutritional calculator. This is not a comprehensive list of all the nutrients in the recipe (i.e., does not include vitamins, cholesterol, etc). I am not a certified nutritionist. Please consult a nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.