Gluten Free Shortbread Cookies

So simple, yet so delicious!

1 cup butter **
2 cups gluten free flour mix (recipe to follow)
1/2 cup white sugar

Preheat oven to 300degrees.
Cream butter until soft, add in flour and sugar until smooth. Voila..thats it!!
** I found this amazing Butter-Vanilla extract by Lorann Professional Kitchen. I added a splash of this in case it wasn't buttery enough already!!
So the gluten free flour mix that I make and use for a ton of different recipes is this...

I call it Grandma's flour Mix
4 cups white rice flour
1 1/3 cup potato starch flour
2/3 cup tapioca flour
2 Tbsp xanthan gum