This simple, traditional Easter cake contains a mix of strong and all-purpose flours, with a dough that's scented with orange zest. You'll need a colomba (dove-shaped) pan in order to make it the authentic way. This version is simply spinkled with granulated and powdered sugars before baking. Others are topped with almonds, too. Some contain candied citrus zest, so go ahead and swap it for the fresh zest if you prefer.