Ingredients
Equipment
Method
Prep and mix
- Preheat the oven to 350°F, then grease a 9x13 pan to prevent sticking.
- Whisk all-purpose flour, baking powder, baking soda, cinnamon, cream of tartar, nutmeg, and salt until evenly combined and no dry streaks remain (dry, uniform look).
- Whisk melted and slightly cooled butter with granulated sugar until glossy and smooth (thick, pourable batter).
- Whisk in blotted-dry pumpkin puree, then whisk in eggs and vanilla extract until the mixture looks cohesive.
- Fold the flour mixture into the wet ingredients until just combined, then spread the batter evenly in the greased pan (no visible flour pockets).
Top and bake
- Mix the cinnamon sugar top, then sprinkle it generously over the entire surface for even coverage (dry, speckled top).
- Bake for 25-30 minutes at 350°F until the bars are just set in the center—do not overbake for a chewy texture (lightly golden edges, soft center).
Cool and cut
- Cool completely before cutting so the bars firm up and clean slices form (set, room-temperature texture).
Notes
Pro tip: blot the pumpkin puree dry to keep the bars chewy instead of cakey. Store in an airtight container in the fridge for up to 4 days; freeze baked bars up to 2 months (thaw in the fridge overnight). For a lower-sugar swap, substitute granulated sugar with a 1:1 baking blend designed for replacement, keeping the cinnamon-sugar topping the same for crusty caramelization.
