To prepare a strawberry shortcake, you'll first need to prepare the ingredients. First, preheat the oven to 350?F (177?C) and prepare your oven rack to line the bottom of the pan with parchment paper. Then, slice the strawberries in half lengthwise and scoop out the seeds. Place the sliced strawberries on the prepared pan and sprinkle with confectioners' sugar. Bake for 20 to 25 minutes or until the top is golden brown. Let the cake cool for 10 minutes before serving.