Preheat the oven to 350° F
In a large bowl, combine all the dry ingredients, stirring gently with a whisk to ensure the spices are well mixed.
In a separate bowl, whisk together the melted butter, yogurt, brown sugar, apple sauce, molasses, egg, and grated ginger. Add this to the dry ingredients and fold to combine.
Pour the batter into a greased and lined 9" round cake pan. Bake for 45-50 minutes or until a skewer inserted into the center of the cake comes out clean