1) Walnuts can easily be substituted for other nuts such as peanuts, almonds, brazil nuts, macadamia, or even sunflower seeds.2) Coconut cream can be bought from the store or can easily be obtained by refrigerating a can of full fat coconut milk overnight. When you open the can the next day, you will notice it will have separated into coconut water and a hard white solid. This is your coconut cream. Be careful to not accidentally add too much coconut water to the peanut butter mousse or the consistency will not be right. 3)This peanut butter mousse pie is great because it can be served right away. However, it becomes amazing after it has been refrigerated for at least 20 minutes allowing the filing to firm up. 4) Peanut butter mousse pie will keep in refrigerator for up to 4 days or longer in freezer.5) To make peanut butter pie Raw Vegan substitute maple syrup for raw agave syrup, stevia, or coconut nectar. Don't substitute these 1:1, slowly add them to the filling until desired sweetness is reached.