Preheat oven to 325F and grease a 6 welled nonstick donut pan. Combine first 4 ingredients together and mix well.
Evenly fill each well with mix (you will do this 4 times)just shy of the well rim.
Bake for 16 minutes, remove from oven and let stand 2 minutes then remove and and place on cooling rack.
In a wide bowl, mix the lemon juice, powdered sugar and warm water until well mixed and slightly thickened. Dip one side of the donut into the glaze and place again on the cooling rack until completely at room temp (15 mins). Dust with powdered sugar to serve.