Ingredients
Equipment
Method
- Heat the oven to 350 degrees F. Grease a 9x9 inch baking pan and line it with parchment paper, leaving a little overhang on two sides so you can lift the cake out later.
- Whisk the flour, baking powder, baking soda, salt, and pumpkin pie spice together in a medium bowl. Set it aside.
- Beat the softened butter and granulated sugar in a large bowl until light and fluffy, about 2 minutes. Add the eggs one at a time, then beat in the pumpkin puree, sour cream, and vanilla.
- Stir the flour, brown sugar, and cinnamon together. Work in the cold butter with your fingers until the mixture forms large, pea-sized crumbs.
- Add the dry ingredients to the wet ingredients and stir just until combined. Do not overmix. Spread half the batter in the pan. Sprinkle half the streusel over it, then spread the rest of the batter on top and finish with the remaining streusel.
- Bake for 40 to 45 minutes, until a toothpick in the center comes out clean. Cool the cake in the pan for 20 minutes, lift it out onto a wire rack, and let it cool completely, about 40 more minutes. Whisk the glaze ingredients until smooth, drizzle over the cooled cake, and slice.
Notes
Use plain pumpkin puree, not pie filling.
Do not overmix.
Cool completely before glazing.
Freezes up to 2 months, wrapped tightly.
Do not overmix.
Cool completely before glazing.
Freezes up to 2 months, wrapped tightly.
