Lemon cake Ingredients Cake * 200g sugar * lemon zest * 165g butter (room temperature) * 45ml oil * 4 eggs * 45ml lemon juice * 300g wheat flour * 7g vanilla extract * 10g baking powder * 3g salt (1/2 tsp) * 180ml milk Frosting * 120g powdered sugar (1 cup) (4.2 oz) * 10ml lemon juice (2 tsp) * 10ml milk (2 tsp)