Preheat your oven to 350°F (175°C) and prepare the loaf pan with parchment paper and nonstick spray.

Cream the softened butter and sugar in a stand mixer at medium speed until light and fluffy, about 3-5 minutes.

Add the large eggs one at a time, mixing well after each addition until smooth, about 2 minutes.

In a separate bowl, whisk together flour, baking powder, salt, and cinnamon until well combined.

Gradually add the dry mixture to the butter mixture, alternating with apple cider, mix until just combined.

Pour the batter into the prepared loaf pan, smoothing the top, and drop the pan on the counter to release air bubbles.

Bake for 40-50 minutes until golden brown and a knife comes out clean.

Cool in the pan for 10-15 minutes, then transfer to a wire rack to cool completely.

Prepare the glaze by mixing sifted powdered sugar with apple cider until smooth.

Once cooled, drizzle the glaze over the cake and let it set before slicing.