To make the cakes, preheat the oven to 180°C/160℃ fan/350°F/gas mark 4. Line two baking sheets with baking parchment.
Stir together the plain flour, brown sugar, baking powder, bicarbonate of soda, salt, cinnamon, ginger, nutmeg and cloves in a mixing bowl.
180 g (1 ½ cups) plain (all-purpose) flour, 200 g (1 cup) light brown soft sugar, ½ teaspoon baking powder, ½ teaspoon bicarbonate of soda (baking soda), ¼ teaspoon salt, 1 teaspoon ground cinnamon, 1 teaspoon ground ginger, ¼ teaspoon ground nutmeg, ¼ teaspoon ground cloves
Add the pumpkin puree, oil, milk and vanilla extract and stir with a balloon whisk to make a smooth, thick batter.
240 g (1 cup) pumpkin puree, 73 g (⅓ cup) oil (I use olive), 45 g (3 Tablespoons) unsweetened non-dairy milk (I use soy), 1 ½ teaspoons vanilla extract
Either use a 2 Tablespoon cookie scoop/small ice cream scoop to scoop blobs of the batter well spaced apart onto the baking sheets, or transfer the batter to a disposable piping bag, snip off the end and pipe blobs of around 1 ½ - 2 Tablespoons each onto the baking sheets. You may not be able to fit all of the batter onto the two sheets, this is fine and you can bake the cakes in batches if needed.
Optionally wet your finger and use it to smooth off any peaks. Bake the cakes for 13 - 15 minutes until springy and dry to the touch.
Allow to cool on the baking sheets for 5 minutes, then carefully peel the cakes off the paper and place on a wire rack to cool completely.