Pre-heat oven to 350F degrees.
Soak raisins in 1/2 cup orange juice for 5 minutes.
Mix flour, baking powder, Cream of Tartar, pinch of sea salt together in a medium sized bowl.
Add slightly beaten egg with orange juice and raisins. Blend until just moist.
Turn mixture onto a floured surface and make into a round dough.
Place in a round cake tin (8 inch) and score the top.
Bake in hot oven 350F for 15 to 20 minutes, when cake bounces back after being lightly touched.
Cut and serve this healthy recipe as soon as it cools a little.
Healthy Recipe of Whole Wheat cake serves 6.