Preheat the oven to 450 degrees. Line a large baking sheet (or two smaller ones) with parchment paper or silicone mats.
Pour the apple cider vinegar and milk together in a large bowl or cup. Let it sit for 5 minutes while you mix the rest of the ingredients.
Mix the flour, sugar, baking powder, salt, garlic powder, and parsley together in a large bowl.
Pour in the melted butter and the milk mixture and gently stir.
Use a fork to mix in the shredded cheese.
Use a 1/4 cup scoop to put heaping scoopfuls on the baking sheet. Bake for 12-15 minutes or until they start to turn golden brown.
If eating right away, mix the remaining 1 tsp. garlic powder into the 3 tbsp. melted butter and brush onto the biscuits as soon as they come out of the oven. (If freezing, wait to do this step until you're ready to eat them!)
If freezing, let cool completely and freeze on a baking sheet, then put them in a freezer safe container or bag. When ready to eat, let them thaw for a few hours and then wrap them in foil and place in the oven at 200 degrees until warm.