First, preheat oven to 450 degrees, and line two baking sheets with parchment paper.
In the bowl of a standing mixer, add the flour, sugar, baking powder, salt, and garlic powder. Mix until the ingredients are combined. Next, add in the melted butter, but save a bit to brush over the top after the biscuits have been baked.
Next, slowly pour in the buttermilk to avoid splashing. Mix again until all of the ingredients are blended. Add the cheddar cheese, and mix again briefly.
Using a large spoon, place big rounded scoops of biscuit dough onto the lined cookie sheets. There will be enough dough for 12 medium biscuits. Then bake for 10 minutes.
After the biscuits have baked, remove them from the oven and gently brush the melted butter topping over them. Serve and enjoy!