Ingredients
Equipment
Method
Prep and preheat
- Preheat the oven to 350F. Brush a 9x5 loaf pan with melted butter and coat the bottom and sides with a generous layer of cinnamon sugar.
Mix batter
- Whisk the flour, baking soda, pumpkin pie spice, cinnamon, and salt together until evenly combined. Whisk the pumpkin, sugar, brown sugar, oil, eggs, vanilla, and buttermilk until smooth.
- Fold the wet mixture into the dry mixture until just combined, with no visible dry flour. Pour half the batter into the prepared pan.
- Sprinkle a layer of cinnamon sugar over the batter. Add the remaining batter and spread to an even layer.
- Swirl gently with a knife just enough to make ribbon-like streaks through the batter. Top generously with the remaining cinnamon sugar for a thick crust.
Bake and cool
- Bake at 350F for 60-65 minutes, until the cinnamon sugar forms a caramelized crust on top. Insert a tester in the center and look for doneness through the loaf.
- Remove the bread from the pan while it is still slightly warm to prevent sticking. Slice once cooled enough to hold its moist pumpkin interior.
Notes
Pro tip: for the best swirl and crust, use a gentle hand when swirling—just a few passes with the knife—so you keep distinct cinnamon sugar streaks. Store tightly wrapped at room temperature for up to 3 days or in the refrigerator for up to 7 days; freeze sliced portions up to 2 months. For a lighter option, substitute half the oil with unsweetened applesauce (keep eggs and buttermilk) for slightly less richness without losing the pumpkin flavor.
