Round up all your ingredients.
Preheat the oven to 450 degrees F (230 degrees C).
Melt the butter in a microwave.
Sift flour, baking powder, sugar, and salt in a bowl and whisk.
Add buttermilk and stir to combine.
Pour the biscuit mixture over the melted butter in a baking dish.
Mark out 9 squares with a bench scraper or knife.
Bake for 20-25 minutes until golden brown.
