I had a wonderful bar of Ghiradelli "Citrus Sunset" that inspired me to replace half the chocolate with toffee bits and add the zest of half an orange to Alton's recipe for "The Chewy." I muddled the zest into the white sugar about 15 minutes before I began. Other than that (and using the microwave to melt the butter) and baking for 10 minutes instead of 14,
The results? Lets just say they're not all going to make it to the office and leave it at that, eh?