Preheat the oven to 180C/Gas 4 and grease a doughnut pan with oil spray.

Make the cinnamon sugar by stirring together the sugar and cinnamon and pouring it into a food bag.

In a bowl, mix together the oil, eggs, pumpkin purée, sugar, spices, salt, and baking powder until combined.

Sift in the flour and fold until incorporated.

Fill a piping bag or food bag (with the corner snipped off) with the doughnut batter and pipe into the doughnut pan - only about halfway up the sides.

Bake for 8 - 10 minutes until they rise. A skewer should come out clean to indicate that they are cooked through.

Leave to cool for a minute before turning out.

While still warm, place the doughnuts into the bag of cinnamon sugar and shake gently to coat. Serve and enjoy warm!