1 onion or leek, finely sliced
3 potatoes, sliced 1/8" thick
1 cup nondairy milk (I use soy)
1 tablespoon prepared horseradish
1/2 cup vegetable broth
salt and pepper, to taste
2 tablespoons olive oil
1-2 tablespoons nutritional yeast
1. Preheat broiler. On the stove top in a large flat pan, saute onion/leek until tender. Add the potatoes and the milk and simmer. The potatoes will start releasing their starch and begin to thicken the sauce.
2. Add the horseradish. As the sauce thickens, add the remainder of liquid as needed. Once the potatoes are tender, add the salt and pepper and taste the sauce. It will taste creamy.
3. Transfer to a shallow baking dish and sprinkle with the nutritional yeast. Place under a broiler. When the tops are browned, it is ready to enjoy!
Source of recipe: I fiddled around with several recipes and came up with this. I had missed au gratin potatoes after going vegan and now I am so excited to have them back!