Prepare - Preheat the oven to 450 degrees F and lightly grease a baking sheet.
Make the buttermilk - In a glass measuring cup, pour in the unsweetened soy milk. Stir in the apple cider vinegar, then set aside to curdle for a few minutes. This is your buttermilk.
Whisk dry ingredients - In a large bowl, mix the flour, baking powder, garlic powder, salt and cayenne pepper.
Mix in wet ingredients - Now add the buttermilk and melted vegan butter to the dry ingredients and stir until a thick dough has formed. Do not over mix. Gently fold in the vegan cheese; use your hands if necessary to incorporate it.
Scoop dough - Lightly grease a 1/4 cup measuring cup and scoop the dough out with it. Place the uncooked biscuit dough on the baking sheet, leaving a little room in between each one.
Bake - Bake in the oven for 12-15 minutes, until golden brown on top.
Prepare the topping - Stir the melted vegan butter, garlic powder and parsley together in a small bowl. Brush the tops of the warm biscuits with the butter mixture.
Serve warm and enjoy! Leftover biscuits will keep for 3-4 days in a covered container and they can be frozen.