If using a food processor , pulse together the flour , sugar , oats , baking powder and salt until its a coarse powder. Add the cubed butter and pulse until the mixture resembles bread crumbs. Add milk, one tablespoon at a time , until the dough just comes together.

If not using a food processor , grind together in your mixer or blender the flour, sugar , oats , baking powder and salt until its a coarse powder. Place this mixture on a clean work surface and add the cubed butter. Using a pastry cutter or two knifes, cut the butter into the flour or using your hands , rub the butter into the flour until the mixture resembles bread crumbs. Add milk, one tablespoon at a time , until the dough just comes together and you are able to shape it into a ball. Do not knead or overmix.

Cover the dough in plastic and chill for atleast 2 hours.

Preheat your oven to 180 C / 350 F . Line a cookie sheet with parchment.

On a lightly floured surface , roll out the dough to about 1/4 inch thickness. If the dough cracks, just patch it together and continue rolling.

Cut using a cutter of your choice and place on the prepared baking sheet about 2 inches apart.

You can optionally chill the pan for another 20 minutes now.

Bake at 180 C/ 350 F for 15-18 minutes until lightly browned.

Cool for few minutes on the sheet and transfer to wire rack to cool completely.