Preheat oven to 300 degrees F.

Spread the pecans out on a baking sheet and bake for 15 minutes, flipping every 5 minutes. Once roasted, add pecans to a food processor and blend and pulse, scraping down the sides of the processor until the butter comes together – about 5-6 minutes. Add in pumpkin, spices, syrup and salt, pureeing and blending more until your desired consistency is reached. If needed, stream in oil 1 teaspoon at a time to bring the butter together and smooth it out a bit.

Taste and season more if needed (this will depend on your pecans, your syrup, etc), then place in a seal-tight container or jar to serve. Store in the fridge if this butter will not be consumed within 1-2 weeks.