Yes. Though, if the two loads exceed 20amps, your breaker will sense overload, do its job, and trip off. Under this condition, you must plug one of the appliances into a different kitchen outlet on a different circuit, in order to balance the load.
However you rarely want to plug two appliances into a single outlet unless the outlets were designed to handle multiple plugs. As a general rule of thumb you do not want each outlet to exceed 1,500 watts so you should check what the wattage of each appliance is.