Cream butter really well. Add brown sugar and mix. Then add powdered oats, foxtail millet flour and mix well. Make small balls out of it and flatten it.
Make impression using a fork and place the cookies in a tray.
Place the tray in refrigerator for 10 mins.
Meanwhile preheat the oven at 180 for 10 mins.
Then bake the cookies for 15-20 mins.
Allow it to cool completely and then serve.
