I did not soak the cashews for this recipe. I often find this step is unnecessary {especially if you have a high-powered blender}. If you'd like to soak yours, you can for 1 - 2 hours. Any bread works for the breadcrumbs, I used whole grain gluten-free bread from Trader Joe's. And, any unsweetened plant-based milk works as well. I favor almond or cashew.