In a small bowl, place confectioners’ sugar, sour cream, and vanilla. Using a fork, stir until smooth. (Mixture will seem too dry at first, but it should come together.) Stir in water, a few drops at a time, until desired consistency is reached. Use immediately.
Recipe by Bake from Scratch at https://staging.bakefromscratch.com/vanilla-bean-berry-pound-cake-sour-cream-vanilla-glaze/