Simple orange cake

Ingrediants :-
125gm butter
1/4 cup sugar 
1/4 cup milk
1/4 cup orange juice1/2 teaspoon vanilla essence
2 eggs
1 cup flour
3 tbsp custard powder
pinch of salt
1 tablespoon orange zest


icing
1/3 cup melted butter
1 1/2 cup icing sugar
2 tbsp orange juice
1/2 teaspoon orang zest
Method:-
1. Preheat oven to 180 degree
2. cream butter sugar salt and vanilla until light and fluffy
3. add egg one of the time
4. add flour gradually with milk alternating and custard powder
5. fold lightly and bake for 45 mins