Pre-heat oven to 350°, grease and flour an 8 or 9 inch bundt pan.
In a large bowl whisk together the flour, baking powder, salt and sugar, add butter and cut in until mixture resembles coarse crumbs, then stir in the zest.
In a medium bowl with a fork or whisk beat together the eggs and milk, then pour into the dry ingredients and stir together until just moist (do not over stir, about 18 stirs). (If you like more orange flavour add the juice of half an orange).
Pour into prepared bundt pan and bake for approximately 40-60 minutes. Check for doneness with a toothpick. Let cool completely before adding the glaze. Enjoy!
In a small bowl whisk together until smooth the icing sugar and juice. (If you like it thicker add more sugar).
ORANGE SYRUP GLAZE
In a small pot add the orange juice and sugar, over medium heat stirring constantly bring to a boil until thickened. With a pastry brush, brush syrup over the top of the cake.