Coffee Cinnamon Rolls

Name: Coffee Cinnamon Rolls
Ingredients: 2 cups confectioners’ sugar; 1 tablespoon butter; 1 teaspoon vanilla; 2 tablespoons whole milk; 2-3 tablespoons strong brewed coffee/espresso*; 1/2 cup butter, melted; 1/2 cup granulated sugar; 1/2 cup brown sugar; 2 tablespoons coffee or espresso grounds**; 1 tablespoon ground cinnamon; 1 cup whole milk; 5 tablespoons unsalted butter; 1/3 cup granulated sugar; 2-1/4 teaspoons (1 packet) active dry yeast; 4 cups all purpose flour, plus more for rolling; 1 teaspoon salt; 1 egg