Pour about 2 cups of apple cider into a medium saucepan. Set the heat to medium and let it simmer for 20-30 minutes, stirring occasionally, until the cider reduces by half.

Preheat your oven to 350°F (175°C) and grease a 9x5 inch loaf pan.

In a large mixing bowl, cream together ½ cup of softened butter and 1 cup of brown sugar using an electric mixer until light and fluffy. Add in 1 large egg and 1 teaspoon of vanilla extract and mix until just combined.

Pour in the cooled, reduced cider. In a separate bowl, whisk together 2 cups of all-purpose flour, 1 tablespoon of apple pie spice, 1 teaspoon of baking powder, ½ teaspoon of baking soda, and ½ teaspoon of salt. Gradually add the dry mixture to the wet ingredients until just combined.

Pour the batter into the prepared loaf pan and smooth the top. Bake for approximately 50 minutes or until a toothpick comes out clean.

Let it cool in the pan for about 15 minutes, then transfer to a cooling rack. Brush with ¼ cup melted butter and sprinkle with a mixture of ½ cup sugar and 1 tablespoon cinnamon.

Allow the bread to cool completely for about an hour before slicing.