Sontaran Frosted Boom Cake starting to boom at Yasmin Khan's birthday. (PROSE: Dr. Thirteenth)

A Sontaran Frosted Boom Cake was a type of baked good native to Sontar. The Thirteenth Doctor bought one of these cakes at a Sontaran bakery to celebrate Yasmin Khan’s birthday. As its name implied, the cake ended up exploding at the party, covering the Doctor and her friends in pink chocolate. Yaz remarked that the cake tasted “pretty good” regardless. (PROSE: Dr. Thirteenth)

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