01 -  Preheat oven to 350°F. Line a baking sheet with parchment paper. 
 02 -  In a large bowl, whisk together flour, baking powder, baking soda, cinnamon, nutmeg, ginger, cloves, and salt. 
 03 -  In a separate bowl, whisk together granulated sugar, brown sugar, pumpkin purée, eggs, vegetable oil, and vanilla extract until smooth. 
 04 -  Add wet ingredients to dry ingredients and stir until just combined to avoid overmixing. 
 05 -  Gently fold in chopped nuts and mini chocolate chips, if using. 
 06 -  Divide dough in half. Shape each portion into a log approximately 10 inches long and 2 inches wide on the prepared baking sheet, leaving space between each. Flatten tops slightly. 
 07 -  Bake for 25 minutes or until the logs are set and lightly golden. Remove from oven and allow to cool on the pan for 10 minutes. 
 08 -  Lower oven temperature to 300°F. 
 09 -  Using a serrated knife, slice logs diagonally into 1/2-inch thick dippers. Arrange slices cut side down on the baking sheet. 
 10 -  Bake for 10 minutes, flip each piece, then bake for another 10 to 12 minutes, until crisp and golden. 
 11 -  Transfer dippers to a wire rack and allow to cool completely before serving or storing.