Preheat oven to 350 ° and grease two 9" round cake pans, or spray with organic baking spray.
Add flours, cream of tartar, and salt in bowl
In bowl of electric mixer beat butter on high until butter is lighter and creamed, about 3-5 minutes. Lower speed of mixer to low and add eggs and extracts until mixed, and then slowly add confectioner sugar until blended.
Alternating between, flour mix, yogurt and milk add in thirds (1/3 flour, 1/3 yogurt, 1/3 milk) until, blended.
Add coconut to mix to stir and divide mixture between two prepared pans.
Tap down to settle and bake for 45-47 minutes.
Cool on a baking rack for 30 minutes, then turn the cakes out onto a baking rack to finish cooling.