Chocolate cake

A chocolate cake is a baked cake that has been used with a chocolate bar. Only a chocolate bar is needed for this, it does not have to be ground into chocolate dust. Each slice of chocolate cake heals 5 Hitpoints, 1 more than a normal cake.

Source

 * 1) Making - requires level 50 cooking
 * 2) Reward from Gertrudes Cat.
 * 3) Reward from Curator in Digsite Quest

Cooking the Cake
To bake a chocolate cake one needs the following ingredients: an egg, a bucket of milk a pot of flour, and a chocolate bar.

Mix all ingredients in a cake tin and use the cake tin with a cooking range. There is a respawn of cake tins on the second floor of the Cooks Guild just West of Varrock. They can also be bought in general stores.

Trivia
Chocholate cake's used to be a members only item. Although all the cake ingredients, along with a Chocolate bar were available to Cooking guild free-to-play members, it made little sense for them not to be able to make it, therefore making Jagex change this to a F2p food.