Preheat oven to 180 degrees celsius. Line and grease a roasting tray.
(OPTIONAL)In a saucepan melt butter over medium heat, and begin whisking. Stir as it bubbles for roughly 2 mins until butter begins to brown.Take off heat and set aside. ( be sure to watch this carefully as it can easily burn). You can skip this step by just adding normal melted butter/oil, but it honestly tastes soo delicious if you do this step!
In a bowl whisk together the oat flour, almond flour and baking soda. In another bowl beat together the melted butter/ oil with the sugar ad xylitol. Beat in the remainder of the ingredients not mentioned leaving out the chocolate chips.
Pour wet mixture into the bowl of flours and baking soda. Mix well using a wooden spoon, stirring in the chocolate chips ( and whatever extra ingredients according to which cookie you're making)!
Roll mixture into balls and place on the tray. Press down using fork forming a cookie shape
Bake in the oven until golden brown ( takes between 8-10 mins).
Allow to cool, and store in an airtight container!