Make this glaze while the Cinnamon-Bun Bites are baking. Recipe adapted with permission from "Williams-Sonoma Family Meals: Creating Traditions in the Kitchen," copyright 2009 by Maria Helm Sinskey and Williams-Sonoma, published by Weldon Owen, San Francisco.
Stir together sugar and salt in a small bowl.
Whisk together butter, milk, and vanilla, and stir into sugar until mixture forms a smooth paste. Keep glaze at room temperature until ready to drizzle over cinnamon-bun bites. Before using, whisk until smooth.