Preheat your oven to 350ºF.
Line a cookie baking tray with parchment paper.
In a large bowl, mix stevia, vanilla extract, butter and egg using a (hand or stand) mixer for 20-30 seconds.
Add the rest of the ingredients to the mixture and mix it with your hands until it turns a doughy.
Form cookies into 2-3 inches and place them on the lined tray.
Bake for 10-12 minutes. be careful because it won't get a golden colour like regular cookies, so check the bottom to see if it looks cooked).