  We present a Lattice QCD determination of the chiral quark condensate based
on a new method. We extract the quark condensate from the operator product
expansion of the quark propagator at short euclidean distances, where it
represents the leading contribution in the chiral limit. From this study we
obtain <\bar q q>^ms(2 GeV)=-(265+-5+-22 MeV)^3$, in good agreement with
determinations of this quantity based on different approaches. The simulation
is performed by using the O(a)-improved Wilson action at beta=6.45 on a volume
32^3\times70 in the quenched approximation.
