You definitely can add nuts to this cinnamon monkey bread recipe! Chopped pecans are my favorite but any kind of nuts will work. As you add the cinnamon sugar coated dough pieces to the bundt pan, sprinkle nuts in between the dough pieces. I would recommend using about 1 3/4 cups of chopped nuts for this recipe. More than that and the dough pieces may not bake together quite as well and cause your monkey bread to fall apart.