The little Stampin' Up Bigz XI Die bitty box is just too cute, so I thought I would try and create one in Make the Cut. Here is my version, looks pretty close. I didn't have any Ghirardelli Chocolate but I think 2 or 3 would fit perfectly, though you can make the box bigger, just remember in MTC select both the score line layer and the design layer to resize.
Here it is opened, I didn't use any glue and it really stays together, though you could glue the little flaps. I put a cookie in so you could see the size.