Preheat the oven to 425 degrees Fahrenheit. Line 2 large sheet pans with TWO pieces of parchment paper on EACH pan. *This will prevent the bottoms of the biscuits from burning.
To a small bowl, stir together the almond milk, apple cider vinegar, and lemon juice. Allow it to rest for 10 minutes to create vegan buttermilk.
Into a medium-sized bowl, add the all-purpose flour, baking powder, sugar, nutritional yeast, garlic powder, old bay seasoning, and salt, and whisk together. Form a hole in the middle of this mix.
Now, stir the melted butter into the vegan buttermilk you made. Pour this into the hole of the dry mix.
Stir the dry mix and wet mix together until it is about 75% combined.
Add in the shredded vegan cheddar cheese and stir it into the batter just until it is evenly distributed, and you can also no longer see any visible bits of flour. However, DO NOT over mix the batter, or you will have chewy biscuits!
Scoop and measure out flat 1/4 cup portions of dough per biscuit. Lay six biscuits on each sheet tray and space them at least 1/2 an inch apart from each other. *DO NOT create biscuits larger than a flat 1/4 cup portion because the biscuits will be undercooked in the center, and if you cook them longer, they may turn too brown. Therefore, it is very important you measure FLAT 1/4 cup portions, which will give you 12 biscuits in the end.
Place the pans of biscuits on the middle rack and bake for 9 minutes. Rotate the pans around and bake for another 9 minutes. *While these are baking, make the garlic butter.
Brush the garlic butter onto the entire tops and sides of the biscuits. Place them back into the oven and bake for another 2 minutes.
Allow these to cool down for at least 5-10 minutes so they finish cooking in the center.