Preheat oven to 350°
In a small pan, melt the vegan butter over a low-medium heat.
Stir in vegan sour cream, garlic powder, onion powder, salt, black pepper, vegan cheese and almond milk.
Whisk thin ingredients slowly until well combined and the mixture is mostly smooth.
Spray your baking dish with a neutral oil or additional vegan butter. Add ⅓ of the sliced potatoes to the baking dish to create the initial layer.
Pour ⅓ of the cheese mixture over top of the potatoes and use a spoon to smooth it over. Repeat until you’ve created three layers.
Cover the dish with foil and transfer it to the oven and bake for one hour and fifteen minutes.
To brown the top, broil for 2-3 minutes (optional). Let cool for a few minutes and garnish with chopped chives and serve.