We spent a long time formulating our products to taste great with just water. That said, they also taste amazing with various non-dairy milks such as oat and almond or other waters such as coconut.
Our personal favourite is about 50% water, 50% almond milk.
A word of caution though, choose quality non-dairy milks – some products contain thickeners and artificial sweeteners. Our advice is to go for the unsweetened kind.