Preheat the oven to 450 degrees(F).
In a large mixing bowl, sift the flour and baking powder. Stir in the sugar, garlic powder, and salt. Set aside.
Make vegan buttermilk. Whisk the non-dairy milk and apple cider vinegar together in a separate bowl or liquid measuring cup and set aside, it will curdle slightly.
Add chunks of the cold butter to the bowl with the flour, and cut the butter into the flour using a pastry cutter or a fork until the butter has been evenly distributed. The mixture should resemble sand.
Add the vegan cheese and the vegan buttermilk you made to the bowl and stir until fully combined. The dough will be sticky.
Line a large sheet pan with parchment paper, then scoop about 1/4 cup of the dough into dollops, spacing them about 1 1/2 inches apart on the pan.
Bake for 12-14 minutes or until golden brown.
Mix the melted butter, parsley, and garlic for the topping. Brush the tops of the biscuits while they are still hot.