That's very nice of you. I should say a square cake would be easiest for cut and share and chocolate would be a fair bet for most popular. Also cup cakes. I'd google cake decorating for some ideas for something more out of the ordinary. Nigella's buttermilk birthday cake is supposed to be really good at being shaped and iced/frosted without crumbling.
IMO, the best cakes to take into work are ones that don't need cutting, so people can take a wedge piece as they are passing.
Nigellas malteaser tray bake is totally divine, esp if you add tiny marshmallows into it.
My other failsafe for work is Anthony worrall thompsons chocolate brownies.... They are amazing ( have even had people at work pay me to make them)
Someone on another thread recommended Betty Crockers devil's chocolate cake mix as a fab chocolate cake. As an easy but impressive option, make this cake as per instructions, fill with fresh cream and raspberries, ice with Nigellas malteser chocolate cake icing, handful of raspberries on top, and then sieve some icing sugar over them to make it look posh.
Oh but what wonderful taste he has!!! I also adore bakewell tart, and infact anything with almonds in. I am an almond fiend. If you want any cake recipes with almond in, let me know. I can throughly recommend:
- Raspberry and almond madiera loaf ( this is quite like a bakewell ) - Orange and almond ( very easy all in one food processor ) - Pistachio cake ( To. Die.For ) - Lemon and almond etc
I made biscotti at Christmas using a recipe HopeForTheBest gave me, they were gorgeous, can dig out recipe if you like. They are twice baked, which ensures they are solid enough to slice, but you do need a very sharp knife and a one slice firm action, iykwim.