Preheat the Oven
Preheat your oven to 450°F (230°C). Lightly grease an 8x8-inch baking dish or an oven-safe pan.
Combine Dry Ingredients
In a large mixing bowl, whisk together the all-purpose flour, sugar, baking powder, and salt until well combined.
Add Buttermilk
Gradually pour in the buttermilk, stirring gently with a spatula until just combined. The dough will be sticky—don’t overmix, as this can make the biscuits dense.
Melt the Butter
Melt the butter in a microwave-safe bowl, then pour it into the prepared baking dish. Make sure the bottom of the dish is fully coated.
Add the Biscuit Dough
Spoon the dough into the dish on top of the melted butter. Use a spatula to spread it evenly, ensuring it reaches the edges.
Score the Dough
Lightly score the dough into 9 squares using a knife. This helps the biscuits bake evenly and makes them easier to separate after baking.
Bake the Biscuits
Bake in the preheated oven for 20-25 minutes, or until the top is golden brown and a toothpick inserted in the center comes out clean.
Cool and Serve
Let the biscuits cool for 5 minutes before slicing along the scored lines. Serve warm with your favorite toppings like jam, honey, or gravy.