A procedure that enables access to α-(hydroxyalkyl)butenolides from 2-(trimethylsilyloxy)furan and keto esters with excellent regiocontrol is reported. Despite their synthetic significance, there is a general lack of catalytic methodology for the α-regioselective Mukaiyama-type aldol reaction of O-silylated dienolates. We demonstrate that the challenging competition between the α and γ positions of