Best Ever Cinnamon Buns

Details

Ingredients

• 2 (.25 ounce) packages active dry yeast
• 2 ½ cups warm water (110 degrees F)
• 1 (18.25 ounce) package yellow cake mix
• 6 cups all-purpose flour, divided
• 3 eggs
• ⅓ cup vegetable oil
• 1 ½ teaspoons salt
• ½ cup butter, softened
• 4 tablespoons white sugar
• 2 tablespoons ground cinnamon
• ¼ cup butter, melted
• 3 cups confectioners' sugar
• 1 ½ teaspoons vanilla extract
• ⅔ cup milk