  We report nucleosynthetic results for both $^{44}$Ti and nickel isotopes for
eighteen three-dimensional (3D) core-collapse supernova (CCSN) simulations
extended to $\sim$20 seconds after bounce. We find that many of our long-term
models are able to achieve $^{44}$Ti/$^{56}$Ni ratios similar to that observed
in Cassiopeia A, and modern supernova models can synthesize up to
$2\times10^{-4}M_\odot$ of $^{44}$Ti. Neutrino-driven winds and the fact that
there can be simultaneous accretion and explosion in 3D models of core-collapse
supernovae play central roles in its production. We conclude that the $^{44}$Ti
underproduction problem in previous CCSN models is no longer an issue. In
addition, we discuss the production of both $^{57}$Ni and stable nickel/iron
ratios and compare our results to observations of SN1987A and the Crab.
