Torta morbida al latte caldo al cioccolato
all-purpose flour (about 170 grams), sifted • granulated sugar (about 160 grams) • eggs • baking powder (about 16 grams) • low-fat milk (about 100 ml) • unsalted butter (about 60 grams) • melted dark chocolate (about 80 grams) • unsweetened cocoa powder (optional) • Powdered sugar, as needed, for dusting