Crisp Vegan Scalloped Potatoes

Vegan Scalloped Potatoes INGREDIENTS 4-5 medium russet potatoes, peeled and thinly sliced 1 small onion, thinly sliced 3 tablespoons vegan butter or olive oil 3 tablespoons all-purpose flour 2 cups unsweetened plant-based milk (such as almond, soy, or oat milk) 1/4...