My first attempt at translating, though this is far from finished. Anyways, maybe someone can make something outta this as I go and try another one for change.

Of course this kasutera (sponge cake) is the height of

1 (kanji) ayu, fumi

art;
decoration;
figures;
literature;
plan;
sentence;
style;

2 inochi

appoint;
command;
decree;
destiny;
fate;
life;

3 dou

hall;
public chamber;

ni

4 kagiru

limit;
restrict;
to best of ability;

1-3) Bunmeidou is a famous brand of the kasutera.

4) "... ni kagiru" means "nothing is better than ...".