1️⃣ Preheat the oven to 450°F. Spray a 9×9-inch oven-safe glass or ceramic baking dish with nonstick cooking spray.

2️⃣ In a medium mixing bowl, whisk together the flour, sugar, baking powder, salt, and garlic powder until well combined.

3️⃣ Pour in 1¾ cups of buttermilk and stir until a thick, sticky batter forms. If the batter appears too dry, add a bit more buttermilk, up to 2 cups total.

4️⃣ Gently fold in the shredded cheddar cheese and chopped chives until just combined.

5️⃣ Melt the butter in a microwave-safe bowl. Pour the melted butter into the prepared baking dish. Alternatively, you can melt the butter directly in the dish if it’s microwave-safe and not metal.

6️⃣ Spoon the biscuit dough directly over the melted butter. Some butter will rise to the top of the dough. Spray your hand with nonstick spray to help gently spread the dough evenly across the pan.

7️⃣ Use a knife to score the dough into 9 squares, which will make cutting easier after baking.

8️⃣ Bake on the middle oven rack for 25–30 minutes, rotating the dish halfway through baking. Biscuits are done when golden brown on top and a toothpick inserted in the center comes out clean.

9️⃣ Let cool slightly, then slice along the pre-cut lines and serve warm.