Preheat the oven to 350F and prepare a loaf pan for baking.
Make the streusel by combining 1/4 cup vegan spread, 1/4 cup brown sugar and 1/4 cup flour until crumbly (add more flour if necessary). Set aside.
Combine the pumpkin with the sugars, molasses, coconut oil, vanilla and spices.
Stir in the flour and baking powder.
Pour into the loaf pan and spread the streusel on top.
Bake for 50 - 60 minutes, turning halfway. The loaf is done when a knife inserted into the center comes out clean.
Let cool on a rack for 30 minutes before removing from pan.