Save Print Overnight Cinnamon Rolls Prep time: 45 mins Cook time: 30 mins Total time: 1 hour 15 mins Serves: Many Ingredients Dough: 4 large egg yolks, room temperature 1 large whole egg, room temperature 2 ounces sugar, approximately ¼ cup 3 ounces unsalted butter, melted, approximately 6 tablespoons 6 ounces buttermilk, room temperature 20 …