Pumpkin Nutella Bars Fall and pumpkin spice go hand in hand. Throw some Nutella in the mix, and we've got something special. 16 bars ½ cup unsalted butter, melted 1/3 cup pumpkin puree ¾ cup dark brown sugar ¼ cup granulated sugar 1 egg yolk ½ teaspoon baking soda ½ teaspoon salt ½ teaspoon ground nutmeg ¼ teaspoon ground ginger ¼ teaspoon ground cloves 1 ½ teaspoon cinnamon 1 ½ teaspoon vanilla 1 ¾ cups all-purpose flour ¾ cup Nutella