Preheat your oven to 350°F (175°C) and grease the 9x5 inch loaf pan with butter or cooking spray.
In a mixing bowl, whisk together the flour, baking powder, baking soda, cinnamon, nutmeg, and salt until well combined.
In another bowl, beat the softened butter and 1 cup of granulated sugar until light and fluffy, about 2-3 minutes.
Add the eggs one at a time, incorporating each fully before adding the next. Mix in the vanilla extract.
Gradually add the dry ingredient mixture to the wet mixture, alternating with the apple cider. Start and end with the flour mixture, and mix until just combined.
Pour the batter into the prepared loaf pan, smoothing the top with a spatula.
Bake for 50 minutes or until a toothpick inserted into the center comes out clean.
While the loaf is baking, mix the ¼ cup of sugar and 1 teaspoon of cinnamon in a small bowl for coating.
Once baked, remove the loaf from the oven and let it cool in the pan for 10 minutes. Then transfer it to a wire rack to cool completely.
Once cooled, brush the top of the loaf with melted butter and sprinkle the cinnamon-sugar mixture generously on top.