Extra Soft Conchas

Name: Extra Soft Conchas
Prep time: 45 min
Cook time: 20 min
Total time: 1 h 5 min
Cuisine: Mexican
Ingredients: 1 1/2 tsps active dry yeast, 4 grams; 1 1/2 tsps sugar; 1/2 c warm water. 110-115 degrees F; 2 cups all purpose or bread flour, 300 grams; 1 1/2 tsps dough conditioner, 8 grams; 1/2 Tsp salt; 1/3 C sugar; 2 large eggs, cold; 1 1/2 tsps vanilla extract; 1/4 cup unsalted butter cold, sliced thin; 3/4 c powdered sugar; 1/2 c shortening or unsalted butter (at room temperature, I sometimes like to use half butter and half shortening); 3/4 c ap flour; Cocoa powder or food coloring gels for different colored toppings