Combine the Turbinado sugar and avocado oil in a large mixing bowl. Add the eggs, one at a time, until well combined.
Add the pumpkin and vanilla. Again, mix until everything is well combined.
To the bowl of wet ingredients, add the flour, baking powder, spices, and salt. Mix everything together until it's just combined.
Pour the pumpkin bread batter to a parchment paper-lined loaf pan.
Snickerdoodle Crumble
Combine the flour, sugar, cinnamon, salt, and butter in a bowl. Using either a fork or your fingers (my preferred method), simply mash everything together until you reach the consistency of moist sand. It shouldn't be powdery or gooey - just something right in between.
Sprinkle the crumble mixture on top of the bread batter. Bake for an hour and a half or until a toothpick comes out clean.
Let the pumpkin bread cool before slicing - if you can wait that long.