Preheat your oven to 375 degrees. Prepare a 13x9 inch pan with cooking spray and parchment paper. Set aside.
In a large mixing bowl, ideally using a handheld mixer, beat butter until smooth.
Slowly add 1 cup of sugar, beating until smooth and creamy. Beat in the syrup and set aside.
In a medium sized bowl combine flour, baking powder and salt.
Add all of the dry ingredients to the butter mixture.
Add milk. Blend until totally incorporated.
In a separate, medium sized mixing bowl beat eggs for about 3 minutes. The eggs will look foamy.
Add remaining sugar to egg mixture and beat until mixture resembles a spongy foam, another 3 minutes. Stir it gently into cake batter until well blended.
Pour batter into your prepared pan.
Bake for between 25 and 35 minutes.
When you press on the center of the cake it should bounce back or a toothpick inserted into the center should come out clean.
Cool in the pan for about 10 minutes and then on a wire rack.
Prepare icing for when your cake is cool.