Warm Cinnamon Rolls Recipe

Dough • 2½ tsp active dry yeast • ½ cup warm water • ½ cup warm whole milk • ¼ cup + ½ tsp sugar (divided) • ⅓ cup butter, slightly melted • 1 tsp salt • 1 large egg • 3½–4 cups all-purpose flour Filling (Cinnamon-Sugar Paste) • ½ cup (1 stick / 115g) butter, softened to room temperature