Rapunzel makes cakes for the groups individual birthdays. Merida and Hiccup team up to make hers; though it always comes out a little lopsided, it always tastes good. Since Jack doesn’t really remember his birthday, they celebrate in the winter solstice.
Rapunzel liked Angelfood cake, Hiccup likes chocolate and Merida likes a surprise. Jack prefers ice cream cake, but regular white cake will do in a pinch; he just freezes it lightly.