The award is for “Cake almost stealing the scene from everyone’s favourite Timelord” (I admit it’s quite a narrow category) and goes to the pretty little cupcake that Rose gives The Doctor at the end of the episode “Fear Her” (Episode 12, Series 2).
Rose offers him the cake -she seems to be missing her little finger (this is not part of the plot, just an observation of mine):
He not only accepts but tucks in (good man):
The happiness a good cupcake brings (OK, so it’s a totally gratuitous photo but it was too cute not to include, and he is actually looking at the cake which is just out of shot):
This leads to one of The Doctor’s wisest observations yet: “Ballbearings you can eat – masterpiece!”