Southern Butter Rolls

Name: Southern Butter Rolls
Prep time: 15 min
Cook time: 45 min
Total time: 1 h
Cuisine: American
Ingredients: 1 cup (2 sticks) unsalted butter; 2 cups all-purpose flour, plus more for dusting; 1/4 cup granulated sugar; 1 tablespoon baking powder; 1 teaspoon kosher salt; 1/4 teaspoon baking soda; 1 cup buttermilk, chilled; 1 teaspoon ground cinnamon; 1 (14 oz) can sweetened condensed milk; 1 1/2 cups whole milk; 2/3 cup powdered sugar; 2 tablespoons butter; 1/4 teaspoon salt; 1 teaspoon vanilla