Preheat oven 350*F
Grease and line baking pan
In a blender add in a whole washed un-peeled but deseeded orange, eggs, sugar and oil and blend on high 2-3 min until mixture is smooth and no visible chunks left
In a mixing bowl whisk together flour, baking powder and pinch salt and mix
Pour in wet mixture into flour and mix well. Add in orange zest (optional) . Do not over-mix
Pour batter into baking pan Glaze
Bake 40-50min (use toothpick to insert if ready)
Cool cake completely before glazing or dusting with powdered sugar
