Pour your 1½ cups of apple cider into a small saucepan and bring it to a gentle simmer over medium-low heat. This step is non-negotiable—you're concentrating all those apple and spice flavors into pure magic. Stir occasionally and check your progress at the 10-minute mark, then every 5 minutes after. You're looking for about ½ cup of reduced liquid. Mine typically takes 18-22 minutes depending on the cider's water content. When you get close, you'll notice the color deepens to a rich amber. Don't worry if there are some spice solids floating on top—those are flavor bombs. Set the reduced cider aside to cool for 10 minutes while you prep everything else.

Heat your oven to 350°F and generously spray your donut pan with nonstick spray—I'm talking every crevice. The difference between sticky donuts that won't release and perfectly shaped ones comes down to this step. If you have two donut pans, this is the time to get both ready. Set them aside on your counter.

In a large mixing bowl, whisk together your flour, baking soda, baking powder, cinnamon, apple pie spice, and salt. Make sure everything is evenly distributed—lumpy flour means lumpy donuts. I use a whisk rather than a fork because it breaks up any clumps hiding in the brown sugar or flour. This takes about 30 seconds but makes a real difference. Set this bowl aside and don't walk away yet.

In another large bowl, whisk together your melted butter, egg, brown sugar, granulated sugar, milk, and vanilla extract until smooth and combined. This is where the richness happens—those two sugars plus the egg create a tender crumb that stays moist for days. If your milk or egg was cold, the butter might seize up slightly. Don't worry; it'll smooth out once you combine it with the dry ingredients.

Pour your wet mixture into the dry ingredients, add that beautiful reduced apple cider, and whisk everything together until just combined. The batter should be thick but still pourable—thicker than pancake batter but thinner than cookie dough. Here's my secret: transfer the batter into a large zip-top bag, cut a ½-inch corner off the bottom, and pipe the batter into each donut cavity until about halfway full. This is so much easier than trying to spoon it in, and my kids actually fight over who gets to do the piping. Re-grease your pan between batches if you're making a full batch.

Bake for 10-11 minutes until the edges and tops are lightly golden brown. Here's the doneness test: poke your finger gently into the top of one donut. If it bounces back, they're done. If your finger leaves an indent, give them another minute. Let them cool in the pan for exactly 2 minutes—this prevents them from breaking apart when you flip them—then transfer to a cooling rack. While they're cooling, combine your granulated sugar, cinnamon, and apple pie spice in a small bowl. Once the donuts are cool enough to handle (about 5 minutes), dunk each side in melted butter, then generously roll in the spiced sugar. The butter helps the sugar stick and adds an extra layer of indulgence.