Preheat the oven to 350 degrees F. Prepare a 9 x 5 inch loaf pan by greasing and lining it with parchment paper for easy removal. Set aside.
Bring the apple cider to a boil in a small saucepan. Once boiling, reduce to low heat, whisk occasionally and continue to let simmer until reduced to 120g (½ cup). For me, this took about 20 minutes. Check every five minutes or so. Once finished, pour the apple cider into a separate liquid measuring cup and let stand for at least 10 minutes to cool slightly.
350g (1 1/2 c) apple cider
In a large mixing bowl, add the flour, baking powder, baking soda, cinnamon, nutmeg and salt. Whisk until thoroughly combined.
265g (1 3/4c + 2T), 6g (1 1/4 tsp) baking powder, 6g (1 tsp) baking soda, 2g (1tsp) cinnamon, 1g (1/4tsp) nutmeg, 3g (1/2 tsp) salt
You can also add a 1 gram (¼ teaspoon) of ground ginger for an extra bite!
In a separate bowl, add the dark brown sugar, egg yolks, sour cream, vanilla, oil, sourdough discard and the reduced apple cider. Whisk until smooth.
*light brown sugar can be substituted with dark brown sugar*
160g (3/4 c) dark brown sugar, 2 egg yolks, 120g (1/2c) sour cream, 8g (2 tsp) vanilla, 100g (1/2c) oil, 120g (1/2c) sourdough discard, 120g (1/2c) apple cider
Pour the wet ingredients into the dry ingredients and mix until just combined! Careful not to over mix the batter, otherwise this can lead to a dense quick bread.
Pour the quick bread batter into the prepared loaf pan and bake for 50-60 minutes, or until a toothpick put in the center comes out clean or with a few moist crumbs.
Leave the quick bread in the loaf pan for 20 minutes before removing it to cool completely on a wire rack. Cool for at least 2 hours for the easiest slicing.
To a rimmed baking sheet, mix the cinnamon and sugar until combined. Once the loaf is cool enough to handle, brush the melted butter on every side with a pastry brush. Allow the butter to soak into the Apple Cider Quick Bread for 30-60 seconds. Dip each side into the cinnamon sugar mixture, using your hands to press onto the bread as well.
14g (1 T) unsalted butter, melted, 50g (1/4c) sugar, 1g (1/2 tsp) cinnamon
Once fully coated, slice and enjoy with a cup of hot apple cider!