Preheat your oven to 350 and spray a donut pan with non-stick spray
In a medium bowl whisk together the flour, baking soda, baking powder and nutmeg
In another medium bowl whisk the egg, brown sugar, milk and yogurt until it is very smooth.
Add the melted butter and vanilla until well combined
Pour the wet ingredients into the dry ones and stir until it is just combined. You do not want to overmix and the batter will be very thick.
For easier use, place the batter in a large baggie and clip off the corner. Pipe the batter into the donut cups (about 2/3's full)
Bake for 9-10 minutes - the edges should be light brown.
Remove and cool on a rack
Combine the sifted powdered sugar, almond extract and milk. Dip each donut into the icing and place back on rack (place something underneath to catch any dripped icing). Immediately place each color of sprinkles on (in thirds).