Humans have utilized mushrooms and mycelium for thousands of years. Currently mycelium is consumed at large in the form of dried powders in supplements. This patent describes a method for preparing a probiotic beverage containing living mycelium. This method allows the delivery of living mycelium through a water-sweetener-flavor base. Due to the living form of the mycelium and the consumable substrate this method is able to provide the beneficial properties of mycelium without degradation of the mycelium's beneficial properties.