Preheat your oven to 450°F (232°C).
In a mixing bowl, combine self-rising flour, buttermilk, and sugar until a sticky dough forms.
Pour melted butter into a baking dish, spreading it evenly.
Drop the dough by large spoonfuls into the butter, forming biscuit shapes.
Bake for 20-25 minutes, or until golden brown on top.
Let cool slightly before serving.