Preheat oven to 450 degrees F.

In a large mixing bowl, whisk together flour, salt, sugar, and 1/2 teaspoon garlic powder.

Slice 1 stick of very butter into tablespoon-sized pats. Add to the mixing bowl with the flour, and with a pastry cutter or fork, cut the butter into the flour until it forms pea-sized pieces.

Toss shredded cheese into the flour and butter until well combined.

Slowly pour in cold buttermilk into the mixing bowl and stir until just combined.

With a large spoon or ice cream scooper, drop large dollops of the batter into a greased 10" cast iron skillet.

Bake on the middle rack for 20 - 25 minutes, or until the tops of the biscuits are golden brown.

While the biscuits are baking, melt remaining half stick of butter. Add remaining garlic powder and parsley to melted butter.

When the biscuits are done and still hot from the oven, brush the melted butter and parsley over the tops of each biscuit.

Serve warm.