1. Preheat the over to 350 degrees. Prepare donut pans by greasing the wells with butter or shortening.
2. Mix the sugar and lemon extract in a large mixing bowl until you form a paste . Whisk in the sweet rice flour and baking powder.
3. In a smaller bowl, whisk the eggs and add in the buttermilk, milk, and lemon zest. Pour into the large mixing bowl and mix until combined.
4. Fill halfway in each well of the donut pan.
5. Bake 8 – 10 minutes. Cool in the pan for about 3 minutes and then transfer to a wire rack to completely cool before adding glaze.

Glaze

1. Mix all ingredients in a bowl until slightly thick but runny. Adjust ingredients for consistency.
2. Dip the donuts horizontally in the bowl of icing until halfway submerged. Let sit on the wire rack until glaze is set.
3. Eat immediately.