In a bowl, mix together the flour, oats, cinnamon, pepper, nutmeg, cloves and soda.
In another bowl, whisk together the molasses, oil and milk.
Make a well in the centre of the flour mixture and tip in the molasses mixture.
Fold in with a spatula until everything just comes together. Do not over mix.
Cover the bowl with plastic wrap and chill for at least two hours.
Pre heat the oven at 170 deg C and line a baking tray.
Make 26-27 balls of the mixture and arrange on the lined tray, a little apart from each other. If they don't fit in one tray, and you need to bake in batches, keep the unused cookie dough in the fridge until needed.
Very slightly press down the tops of the balls.
Place the tray in the centre of the pre heated oven an bake for about 22-24 minutes.
Remove the tray from the oven and cool for a minute.
Transfer the cookies to a cooling tray and cool completely.
Take some icing sugar in a bowl and roll the cookies in it.
Store in air tight containers.