  In this work, we develop the theory of $k$-idempotent ideals in the setting
of dualizing varieties. Several results given previously in \cite{APG} by M.
Auslander, M. I. Platzeck, and G. Todorov are extended to this context. Given
an ideal $\mathcal{I}$ (which is the trace of a projective module), we
construct a canonical recollement which is the analog to a well-known
recollement in categories of modules over artin algebras. Moreover, we study
the homological properties of the categories involved in such a recollement.
Consequently, we find conditions on the ideal $\mathcal{I}$ to obtain
quasi-hereditary algebras in such a recollement. Applications to bounded
derived categories are also given.
