In a bowl mix butter and monk fruit sweetener with a hand mixer
Mix until light and fluffy
Add almond flour, coconut flour, salt and vanilla extract. Mix with hand mixer.
Knead dough with hand to form smooth ball
On parchment paper take dough and roll into a log shape
Roll log in parchment paper and freeze for at least an hour
Preheat oven to 325°F
Take dough out of freezer and slice the dough into ¼ inch slices
Place on baking tray lined with silpat or parchment paper. Keep 1 inch distance between each shortbread cookie
Place in oven and bake at 325°F for 5 minutes and then remove from oven. Use a flat bottomed glass and press down to flatten each shortbread cookie
Place back in over and continue baking at 325°F for another 10-12 minutes
