3 cups flour
1 tsp baking powder
1 cup unsalted butter
1 cup sugar
1 large egg
1 tsp vanilla extract
In a separate bowl whisk together flour and baking powder.
Beat together butter and sugar. Once mixed well, add in egg. Mix again, then add in vanilla.
Slowly add in flour mixture about a cup at a time. Mix until dough forms and begins to clump
Gather up dough and knead it with hands until it's smooth. Roll it into a ball, wrap with cling film
and place in fridge to chill between 20-40 minutes. You want it to be firm but not hard.
Bake at 350, time will depend on cookies size and thickness. Normally between 7-11 minutes.