Preheat oven to 180c.
In a bowl, sieve together the flour, salt and baking powder. Add 1 cup of the oatmeal and mix.
In a blender, process the white and brown sugars, along with remaining ¼ cup of the oatmeal, until fine.
In a large bowl using hand whisk or food mixer, blend butter and maple syrup. Then add the blended oatmeal/sugar mixture in two lots until blended. Add flax egg and vanilla, mix for another minute.
Incorporate the dry ingredients in two lots until thoroughly mixed, then, using a wooden spoon, fold in the chocolate chips and nuts. The mixture will be pretty stiff at this point.
Roll the mixture into balls, you can make them as large or as small as you like, I like to make them slightly smaller than golf balls. Place them onto a lined baking sheet and flatten them down. They won’t spread out much during baking, so again you can choose to make them as chunky or flat as you want.
Bake for between 10-12 minutes or until just turning light golden. Don’t overbake!Cool on a wire rack, then eat!