We're going to use the zest of an orange to add some nice flavor to the base of this bread. You can either do this with a grater (or with a microplane like this one - my favorite! FYI, that's an affiliate link and I may make a commission if you click through and make a purchase) or with a decent vegetable peeler and a knife. When grating, make sure you only grate the outmost layer of the zest, as the white pith is very bitter. OR you can use a sharp vegetable peeler to peel off the zest in a very thin layer (again, not the white stuff), then chop it finely with a knife. Either way, make sure you've washed your orange before zesting, AND definitely zest it before squeezing the juice!