Matcha red bean cupcakes are a delicious and unique dessert that combines the earthy flavor of matcha with the sweet and nutty taste of red bean paste. To make these cupcakes, start by mixing together flour, sugar, baking powder, and matcha powder. In a separate bowl, whisk together eggs, milk, and vegetable oil. Gradually add the dry ingredients to the wet ingredients, stirring until just combined. Fold in the red bean paste and pour the batter into lined cupcake tins. Bake for 18-20 minutes, or until a toothpick inserted into the center of the cupcakes comes out clean. Let the cupcakes cool before frosting with a matcha buttercream and garnishing with a dollop of red bean paste. These cupcakes are perfect for any occasion and are sure to impress your guests with their unique flavor and beautiful green color.