Preheat the oven to 350°F. Grease a 9-inch loaf pan (or two 7" or 8" loaf pans) and set aside. In a large bowl whisk together the pumpkin, sugar, butter, vanilla, and eggs set aside.
In a large bowl whisk together the flour, baking soda, salt, cinnamon, and baking powder. Pour the wet mixture into the dry and stir together until just combined, so there are no dry lumps. Pour everything into the prepared pan.
Bake for 70-80 minutes or until a toothpick inserted into the center comes out clean (for 2 loaf pans, check bread at 50 minutes). Cool for 10 minutes in the pan. Invert the bread and place it on a wire rack to cool completely.
Calories are automatically generated. For best results calculate based on your exact ingredients.Recipe makes one overfilled loaf or two smaller loaves. Optional streusel topping: Whisk together 1 part butter, 2 parts flour, and 4 parts sugar (e.g. 1/4 cup butter, 1/2 cup flour, 1 cup sugar). A pinch of salt too, if you’d like.