A beverage supplying device includes a touch panel for receiving an operation for selecting a main syrup constituting a main beverage, and a topping syrup added as flavoring to the main beverage. The device further includes a second syrup solenoid valve for opening and closing a passage for supplying the topping syrup that is stored under pressure in a syrup tank and a second syrup pump for intermittently supplying the topping syrup while the second syrup solenoid valve is open, the second syrup pump being provided to the passage for supplying the topping syrup between the syrup tank and the second syrup solenoid valve. The device further includes a nozzle for producing the main beverage by mixing the main syrup with water or carbonated water at a prescribed ratio, and producing a beverage by mixing the topping syrup with the main beverage without diluting the topping syrup.