While the oven is heating up, mix all of the dry ingredients together in a large mixing bowl.
Pour the mix into the loaf tin and smooth out so the mixture is even across the whole tin.
Bake for at least 40 minutes. The best thing is to check that it's not too brown on top and use the old "stick a toothpick" in trick - if it comes out clean the cake is probably done.
120g plain flour
1 cup pumpkin puree
1 1/2 teaspoons baking powder
1 1/4 tablespoons olive oil
1/2 teaspoon ground cinnamon
1/4 teaspoon ground nutmeg
1/4 teaspoon ground ginger
1/4 cup light brown sugar
1/2 teaspoon bicarbonate of saod
1/4 teaspoon vanilla extract
(I have details of how to make your own pumpkin puree on my blog - http://mrs-jones-to-be.blogspot.co.uk/p/pum.html)