First, brown your butter. This is a great step-by-step post if you need one. Set aside to cool.

Preheat oven to 350 degrees and spray a bundt pan with cooking spray.

In one bowl, whisk together both flours, baking soda, cinnamon, and nutmeg.

In another (heatproof if your brown butter is still warm) bowl, add both sugars and melted brown butter. Mix on medium speed until combined.

Add vanilla and both eggs. Mix well.

Add half of the flour mixture and half of the apple cider to the brown butter mixture and mix until just combined. Repeat with the second half of the flour mixture and apple cider. Mix well.

Pour batter into prepared bundt cake pan. Bake for 30-32 minutes, or until a toothpick insert into the center of the cake comes out clean.

Remove from oven and let the cake cool for 5-10 minutes in the pan. Then transfer it to a wire rack to cool completely.

Combine all three ingredients in a bowl and whisk until incorporated.

If glaze is too thick, add a teaspoon or two of cider until it's the preferred consistency.

Drizzle over cooled cake. (Or slightly warm.)