Lemon Loaf Frosting like at Starbucks?

Question

I am making a lemon loaf and I am trying to find a glaze or frosting that has a great lemon flavor but when is applied to the loaf or cake it is like frosting that is that hardened crust sort of thing going on.

I am having a hard time explaining it. I basically want the frosting recipe from the lemon loaf at Starbucks.

Answer 1

3 T butter
2 cups powdered sugar
1 tsp lemon juice
Milk by the tsp as needed

Blend the above until you find the consistency that you need or like.