  We study resonant Andreev tunneling through a strongly interacting quantum
dot connected to a normal and to a superconducting lead. We obtain a formula
for the Andreev current and apply it to discuss the linear and non-linear
transport in the nonperturbative regime, where the effects of the Kondo
resonance on the two particle tunneling arise. In particular we notice an
enhancement of the Kondo anomaly in the $I-V$ characteristics due to the
superconducting electrode.
