I've never tried making a food render but felt like a good challenge. I didn't spend that much time on it, most of the time was spent trying to get the swirl on top right, which I am quite happy with. 

Modelled almost everything in the scene from scratch, a mix of 3DS Max, ZBrush and Marvelous Designer.

I made this render based off these photos!

 https://britneybreaksbread.com/chocolate-cupcakes-with-espresso-buttercream/