Grease and flour (or use non-stick spray) a 10-inch bundt pan.
In a medium bowl,sift together flour, baking powder and salt. Set aside.
In a large mixing bowl (of stand mixer) beat the eggs on high speed for about 3 minutes (eggs will become thick).
Gradually add the sugar and continue beating for another 2-3 minutes.
Reduce speed and add oil, milk and juice.
Add dry ingredients, vanillin (or vanilla extract) and zest and beat only until combined.
Bake in a 350℉ (175°C) oven for approximately 35 minutes or until cake tester comes out dry.
Cool completely on wire rack.
Dust with icing sugar before serving.
*Vanillin can be substitued with 1 teaspoon pure vanilla extract.Please keep in mind that the nutritional information provided below is just a rough estimate and variations can occur depending on the specific ingredients used.