The whole recipe turns on thirty seconds of restraint: mix the pumpkin batter just until the flour disappears, then stop. Overmix it and the cakes turn tough. Get it right and they bake up soft enough to bite cleanly and sturdy enough to hold a thick cream cheese filling — and a batch stacks, travels, and tastes like October, which is exactly what a bake-sale table needs.
Why this one works
The technique is in the batter, and it is a small one: mix just until the flour disappears and then stop. Pumpkin puree makes a wet batter, and a wet batter overmixed turns tough — but mixed gently, it bakes into a cake that is soft enough to bite cleanly and sturdy enough to hold a thick filling without collapsing. The hands-on work takes about twenty minutes; the oven and the cooling rack do the rest. (This is the one I’d bring to the school bake sale, because it looks like you tried much harder than you did.)
Use pure pumpkin puree, not pumpkin pie filling — the filling is already sweetened and spiced, and it throws the whole balance off. And make the cakes the same size, or the sandwiches come out lopsided: a heaping tablespoon per mound, twelve per sheet, and pair up similar shapes before you fill them.
Pumpkin Whoopie Pies
Ingredients
Method
- Heat the oven and line the pans. Set the oven to 350°F and line two baking sheets with parchment paper.
- Whisk the dry ingredients. In a medium bowl, whisk together the flour, baking powder, baking soda, cinnamon, pumpkin pie spice, and salt.
- Beat the wet ingredients. In a large bowl, beat the brown sugar, vegetable oil, pumpkin puree, egg, and vanilla on low speed until smooth and combined, about 30 seconds.
- Combine — and stop. Add the dry ingredients to the wet and mix on low just until no flour streaks remain. Overmixing makes tough cakes; a few lumps are fine.
- Scoop and bake. Drop heaping tablespoons of batter onto the prepared sheets, about 2 inches apart — 12 mounds per sheet. Bake both sheets at once for 11 to 13 minutes, until the tops spring back when touched lightly.
- Cool completely. Let the cakes cool on the sheets for 5 minutes, then move them to a rack and cool for 30 minutes more. Warm cakes melt the filling, so do not rush this.
- Make the filling and sandwich. Beat the cream cheese and butter together until smooth and creamy, about 2 minutes. Beat in the powdered sugar, vanilla, and salt until light and fluffy. Spread about 2 tablespoons of filling on the flat side of half the cakes and top with the remaining cakes, flat side down. Chill for 30 minutes before serving so the filling sets.
Variations
A marshmallow filling is the traditional swap — marshmallow creme beaten with butter and vanilla, in place of the cream cheese — and it is the version to make if the pies will sit out at a party, since cream cheese filling belongs in the refrigerator. A pinch of ground ginger or cloves in the batter deepens the spice without changing the method, and a drizzle of maple syrup in the filling (in place of a tablespoon of the powdered sugar) gives it a quieter sweetness.
For a smaller batch, halve the recipe and bake one sheet — the cakes keep their shape just as well, and the filling halves cleanly.
Serving and storage
Because the filling contains cream cheese, these belong in the refrigerator in an airtight container. Pull them out just before serving — the USDA advises discarding perishable foods that sit out for more than two hours, so do not leave a tray on the counter all afternoon. They travel well chilled, stacked between sheets of parchment, which is exactly why they are a bake-sale natural.
Whoopie pies are Maine’s official state treat — named in 2011 — and the pumpkin version is the fall twist on the classic chocolate-and-marshmallow original. If you are baking your way through the season, the pumpkin bread in a Dutch oven over a fire pit uses the same pantry, and the apple cheddar hand pies are the other hand-held bake worth a batch.
