Preheat your oven to 350°F and line a muffin tin with paper liners or lightly grease each cup. In a large bowl, whisk together the soft milled wheat flour, additional flour, baking powder, baking soda, cinnamon, ginger, and salt.
Stir in the grated apple, grated carrot, raisins, orange zest, orange juice, and chopped pecans until evenly distributed.
In a separate bowl, whisk together the sourdough discard, sucanat sugar or honey, melted butter, eggs, yogurt or sour cream, and vanilla extract.
Pour the wet ingredients into the dry ingredients and gently fold until just combined. Do not overmix.
Divide the batter evenly among the muffin cups, filling each about three-quarters full.
Bake for 18 to 22 minutes, or until the tops are set and a toothpick inserted in the center comes out clean. Let the muffins cool in the pan for 5 minutes before transferring to a wire rack to cool completely.