Frozen "Dog Smoothies" in a Kong! ~~ I blend a banana, a few spoonfuls of peanut butter and water or almond milk, then pour them into a kong (in a cup). Freeze and pull out later as a treat that will keep your dog busy! A batch with 1 banana usually makes 2 kongs at least. With leftover smoothie, freeze in an ice tray as quicker treats. This site also has good ideas for recipes.