Step-1blend honey and eggs well
Step-2melt chocolate and mix with peanut butter
Step-3combine egg mixture with chocolate mixture, add vanilla essence and coffee if you want.
i added because whole wheat flour will give a slightly different flavour. in order to mask that i added coffee powder otherwise vanilla essence will work.
Step-4add whole wheat flour and mix thoroughly
Step-5grease mug or tin with little butter and pour cake mixture.
Step-6bake in preheated oven at 200 c for just 8 minutes.
it will become a fully baked cake if baked for more than 10 minutes.
if using microwave the time can be 10 minutes.