Preheat the oven to 180C/350F and line the base of a baking tin with parchment paper.
Place the butter and sugar into a bowl and beat until pale and fluffy, approximately 3 minutes.
Add in one egg and whip until combined.
Repeat with the remaining egg.
Add in the vanilla extract and whip to combine.
In a separate bowl, toss the flour, baking powder and salt and stir together.
Add ¼ of the flour mixture into the butter egg mixture and combine on low speed until no portions remain on the edge of your bowl.
Pour in ¼ of the milk and combine on low until just incorporated.
Repeat by adding in the flour and milk in portions and mixing on low speed until your batter has been formed.
Spoon the cake batter into your cake pan and spread out evenly.
Bake in the oven until the exterior is golden brown and a cake tester comes out clean from the center of the cake, approximately 35 minutes.
Remove and allow to cool in the cake tin for 5 minutes before removing and setting onto a cooling rack to cool completely.
Sprinkle over powdered sugar.
Slice, serve and dig in.
Enjoy!