Baked Alaska was a type of dessert made with ice cream and hot meringue, and was thus frozen in the middle, but hot on the outside.
In 1990, the Seventh Doctor ordered a baked Alaska in a café on Ealing Broadway. He and Ace left without eating it when the TARDIS sent them a warning. (PROSE: Cat's Cradle: Time's Crucible)
On Gadrell Major in 2387, Bernice Summerfield thought that the Doctor's idea of sending her there ranked right up with doing baked Alaska in a microwave. (PROSE: Infinite Requiem)