Preheat the OvenPreheat your oven to 350°F (175°C). Grease and lightly flour a 9×5-inch loaf pan, tapping out any excess flour. This helps the loaf release cleanly after baking.
Mix the Dry IngredientsIn a medium bowl, whisk together flour, baking powder, baking soda, salt, cinnamon, nutmeg, and allspice. Set aside — these spices are the heart of that cozy apple-cider-donut aroma.
Mix the Wet IngredientsIn a large bowl, whisk melted butter, granulated sugar, brown sugar, and eggs until smooth. Add apple cider and vanilla extract, stirring until fully combined.
Combine and Mix GentlyPour the dry ingredients into the wet mixture gradually. Stir just until combined — overmixing makes a dense loaf, and you want it fluffy and moist.
BakePour the batter into the prepared pan. Bake for 45–50 minutes, or until a toothpick inserted into the center comes out clean. Your kitchen should smell like a mix of cider donuts and fresh pie at this point.
Make the Cinnamon Sugar CrustWhile the loaf cools for about 10 minutes, mix the ¼ cup sugar and 1 teaspoon cinnamon in a small bowl. Brush the top of the loaf with melted butter, then sprinkle (generously!) with the cinnamon sugar mixture. The sugar will create a slightly crisp, caramelized crust as it sets.
Serve and EnjoySlice and serve warm — the inside stays tender, buttery, and fragrant. Perfect with a mug of hot apple cider, chai, or a dollop of whipped cream.