01 - Preheat oven to 350°F. Grease a mini donut pan thoroughly to prevent sticking.
02 - Whisk together sweet rice flour, ground black sesame seeds, granulated sugar, baking powder, and salt in a large bowl until evenly distributed.
03 - Beat eggs in a separate bowl, then add milk, melted butter, and vanilla extract. Whisk until fully combined and smooth.
04 - Pour wet ingredients into dry ingredients. Mix until a smooth, thick batter forms, ensuring no flour pockets remain.
05 - Spoon or pipe batter into prepared donut pan, filling each cavity approximately 3/4 full to allow for rising.
06 - Bake for 15-18 minutes until donuts spring back when lightly pressed and a toothpick inserted comes out clean.
07 - Let donuts cool in pan for 5 minutes, then carefully transfer to a wire rack to cool completely before glazing.
08 - Whisk powdered sugar with 1 tablespoon milk and black sesame paste until smooth. Add additional milk if needed to achieve dipping consistency.
09 - Dip tops of cooled donuts into glaze and sprinkle with additional black sesame seeds if desired. Allow glaze to set before serving.