In a bowl mix the sugar and butter until smooth. Then add the vanilla extract and mix.

Add flour to the the mixture and mix until it forms a dough.

Place the dough in the fridge for 30 minutes.

Heat the oven to 400°.

Take out the cookie dough and form it into balls, then flatten the balls until they are 1/2-inch thick.

Bake the cookie dough for 10-15 minutes.

Take out the cookies and let them cool for 10 minutes.