Two goals from Craig Fagan and one from Jon McCarthy eased Blues second string to victory against the Dr Martens Western League leaders.
Blues, who dominated throughout, took the lead after nine minutes when Fagan scored with a glancing header from Bryan Hughes's cross.
Fagan doubled Blues' lead on the hour with a well taken finish before captain for the night McCarthy scored the third on sixty-six minutes.
Reserves Senior Cup success
Line up:
N. Vaesen, J. Gill (R.Diamond), T. Capaldi, C. Woodhouse, M. Johnson, D. Holdsworth, J. McCarthy, Marco Randria, A. Johnson (C.Ward), C. Fagan, B. Hughes (M.Sabathier).