Bake in top third of the oven, about 35 minutes. (diginwithdana.com)
Preheat oven to 375 °F (190 °C), and place rack in top third of oven. (bakefromscratch.com)
Bake the shells, one baking sheet at a time, in the top third of the oven for 12 - 16 minutes, during which time they should sprout feet (if you used cocoa in the shells, they may need an additional 2 minutes of baking time). (korenainthekitchen.com)