Vanilla-Sugar Conchas

Name: Vanilla-Sugar Conchas
Cook time: 13 h 5 min
Total time: 13 h 5 min
Cuisine: Mexican
Ingredients: 3 3/4 cups plus 2 tablespoons all-purpose flour (about 1 pound), divided, plus more for dusting; 1/3 cup granulated sugar, plus more for dipping; 1 (1/4-ounces) envelope active dry yeast; 3/4 teaspoon fine sea salt; 3/4 cup unsalted butter (6 ounces), melted; 1/4 cup whole milk; 4 large eggs, beaten; Egg wash, for brushing; 3/4 cup all-purpose flour (about 3 1/4 ounces); 1/2 cup vegetable shortening; 3/4 cup powdered sugar (about 3 ounces); 1/2 teaspoon baking powder; 1/4 teaspoon fine sea salt; 1/2 vanilla bean pod, seeds scraped and pod discarded