Ingredients
Equipment
Method
Prep
- Preheat oven to 350F and grease a 9x13 pan, then set it aside for later. A thin sheen of grease should coat the entire bottom and sides.
- Make the crumb topping by mixing flour, brown sugar, and cinnamon, then stir in melted butter until large crumbs form. The mixture should look uneven and clumpy like thick streusel.
- Refrigerate the crumb topping while you prepare the cake layers. It should firm up enough to scatter without fully melting.
- Beat the cream cheese layer ingredients (cream cheese, sugar, egg, and vanilla) until smooth. Stop when no lumps remain and the mixture flows like a thick pour.
Assemble and bake
- Beat butter and brown sugar until smooth, then add eggs, pumpkin, sour cream, and vanilla and mix until combined. The batter should be thick and glossy with no dry pockets.
- Fold in the dry ingredients (flour, baking powder, baking soda, pumpkin pie spice, cinnamon, and salt) until just incorporated. Mix only until the flour disappears so the crumb stays tender.
- Spread half the batter into the prepared 9x13 pan. The surface should be level enough to support the cream cheese dollops.
- Dollop the cream cheese mixture over the batter and spread gently. Create swirls and keep the dollops from mixing completely with the pumpkin layer.
- Top with the remaining batter and scatter the crumb topping generously over the surface. Leave some crumb peaks visible so they bake into a crunchy top.
- Bake for 50-55 minutes at 350F until done. The center should be set and a toothpick should come out mostly clean; crumbs should look toasted.
- Dust with powdered sugar before serving. A light snowfall should sit on top without soaking into the cake.
Notes
Pro tip: scatter the crumb topping generously right before baking so it stays chunky instead of fully melting. Store covered in the refrigerator up to 4 days; rewarm individual slices in the microwave for 10-20 seconds. Freezing is yes—wrap tightly and freeze up to 2 months, then thaw overnight in the fridge. For a lighter option, use low-fat cream cheese and reduced-fat sour cream; the texture remains creamy but the flavor will be slightly less rich.
