Preheat oven to 350F. Prepare a loaf tin by spraying it with nonstick baking spray or lining it with parchment paper.

Using a mixer, cream together butter and sugars until fluffy and well combined. Beat in eggs, one at a time, until fully incorporated. Add vanilla extract and beat to combine.

In a large bowl, whisk together flour, baking powder, salt, and pumpkin spice.

Mix in about a third of the flour mixture until combined, then add about half of the pureed pumpkin. Repeat, adding it another third of flour mixture, letting in combine, adding in the remaining pumpkin, and then adding in the remaining flour until all the flour and pumpkin is well combined.

Using a spatula, fold pecans into the batter.

Pour the batter into the prepared loaf tin.

Bake for 60-75 minutes, or until a skewer inserted into the cake comes out clean.

Let cool and enjoy!