How to Make Mixed Berry Smoothie Recipe Ingredients -1 ½ Cup Walnut Milk (nondairy milk) -1 Scoop Plant-Based Vanilla Protein -1 Scoop Unflavored Collagen Peptide -1 Banana -¼ Raspberries (frozen or fresh) -¼ Blueberries (frozen or fresh) -¼ Blackberries (frozen […]