Measure and sift one cup of powdered sugar into a mixing bowl.

Add two tablespoons of melted unsalted butter and whisk until smooth.

Stir in one and a half teaspoons of vanilla extract until fully combined.

Add a pinch of salt and whisk to balance the sweetness.

Pour in two tablespoons of whole milk and whisk until you achieve a smooth, pourable consistency.

If the glaze is too thick, add additional milk one teaspoon at a time, whisking and testing after each addition.

Continue adjusting the consistency until the glaze lightly coats the back of a spoon.

Drizzle the glaze over warm or cooled pastries, cakes, or donuts and allow it to set for a few minutes.