Jammie Dodgers (sometimes Jammy Dodgers) were biscuits filled with jam. The Eleventh Doctor fooled the Daleks into thinking one was a self-destruct button for the TARDIS. When the Daleks discovered his deception, the Doctor ate the Jammie Dodger. (DW: Victory of the Daleks)
The Doctor searched his jacket pockets for a Jammie Dodger while on Base Diana but didn't find one. (NSA: Apollo 23)
The Doctor once sorted out a dispute between the Pug Ugly gang and the Dead Rabbit gang in New York in 1829 by settling it over a pack of Jammie Dodgers. (NSA: The Forgotten Army)
The Doctor once ate or removed all the Jammie Dodgers in a biscuit tin when bringing brothers David and Jack Kershaw together, though the seal on the tin was never broken. (WC: Snowfall)
The Doctor asked the Conways if they had any Jammie Dodgers while he, Amy and Rory were on their farm. He stated that he always liked a Jammie Dodger. Sadly, the Conways did not have any. (NSA: Heart of Stone)
The Doctor asked for twelve Jammie Dodgers (and a fez) while in the White House. His request was denied. (DW: The Impossible Astronaut)
While making tea in Alex's flat, the Doctor asked if there were any Jammie Dodgers. (DW: Night Terrors)