Step 1

In a small bowl, sift together flour, cornstarch, and salt. Set aside.

Step 2

In a large bowl, beat together butter and sugar until light. Add in vanilla and mix to combine.

Step 3

Slowly add the flour mixture to the wet ingredients and mix until just combined.

Step 4

Divide the dough in two equal balls and roll each into a 1 ½ inch log. Seal tightly with plastic wrap and chill for 1 hour.

Step 5

After 1 hour, line a baking sheet with parchment paper. Slice the dough logs into ½ inch rounds and place on the baking sheet. Return the sliced cookies to the refrigerator for 45-60 minutes.

Step 6

Preheat oven to 350 degrees then bake cookies for 9-11 minutes or until just beginning to brown.

Step 7

Allow cookies to cool completely then dust with additional powdered sugar.