1 cup of sugar together on medium speed until light and fluffy, about 5 minutes. add eggs one at a time and beat well after each addition. reduce speed to low and add vanilla extract, rum and orange zest. add bread mixture and mix until well combined.
in a separate bowl, combine walnuts, dates and flour and then fold into bread mixture.
pour remaining 1/2 cup of sugar into small saucepan. place over medium heat and move pan frequently but do not stir until it takes on an amber hue. pour caramel into mold (like a loaf pan) and swirl so than bottom and sides are lightly covered. the caramel will be 