Mix the dough: In a large bowl, add the water, sourdough starter, honey, and optional food coloring, and whisk together until combined. Pour in the bread flour, whole wheat flour, pumpkin puree, pumpkin spice, and salt, and mix until a dough forms and no dry patches remain. Cover the dough and let rest at room temperature for 30 minutes.
475 g ( 3¾ cups) Bread flour, 25 g (3 tablespoons) Whole wheat flour, 100 g (⅓ cup + 1 tablespoon) pumpkin puree, 100 g (⅓ cup) sourdough starter, 325 g (1⅓ cups + 1) water, 10 g (1¾ teaspoons) salt, 20 g (1 tabelspoon and 1 teaspoon) honey, 1 teaspoon pumpkin spice, Optional: Orange food coloring to color your dough orange. I like this all-natural plant-based food coloring.