Dissolve the yeast in the warm water.
Combine all of the ingredients, except the fruits and zest. Mix together by hand or with a dough hook on a stand mixer until you have a soft, smooth dough.
Cover the dough and allow to rise until it is puffy, about 1 to 1 ½ hours.
Prepare a panettone bread mold with nonstick cooking spray.
Gently deflate the dough. Then, knead in the fruits and zest by hand or with a dough hook on a stand mixer.
Shape the dough into a ball. Place into the prepared panettone mold. Cover and allow the dough to rise until it has just crested over the rim of the baking mold, about 1 hour.
Preheat the oven to 400 degrees F or 204 C. Bake the bread for 10 minutes. Reduce the temperature to 375 degrees F or 190 C and bake for an additional 10 minutes. Finally, reduce the oven to 350 degrees F or 177 C and finish baking for 25 to 30 minutes. If you notice the crust beginning to brown, tent tin foil over the loaf. When done, the internal temperature would be 190 degrees F or 88 C.
Cool the loaf completely before storing in an airtight container for up to one week or in the freezer for up to 6 months.