Preheat oven to 350°F. Line an 8x8" square pan with parchment paper.

In a large bowl combine flour and salt. Add powdered sugar and mix well. Add remaining Ingredients and mix with a large spoon till well combined. 

Form dough into a ball. Take ball of dough and press evenly into your prepared baking pan. With a silicone spatula or a dull knife smooth out top of dough. Take a fork and prick holes in top of the smooth dough 

Bake for 25 minutes untill top of the cookies feels firm. Let cool in pan 5 minutes then take a serrated knife and cut into squares. 

You can also roll dough into a thick log and cut 1/4" slices and bake for 20 minutes.