Ethel's Sugar Cookies

I got this recipe from a friend and no one has any idea who "Ethel" is but who am I to remove the title from her delicious cookies!?

1 1/2 c. soft butter
2 c. sugar
4 eggs
1 tsp. vanilla
5 c. flour
1 tsp. baking powder
1 tsp. salt

Preheat oven to 400

Combine butter, vanilla and sugar in a bowl and mix until light and fluffy. Beat in one egg at a time and scrape the bowl after each addition. Combine dry ingredients and add to egg mixture gradually until well moistened.

Chill for 1 hour. (Don't skip this step!)

Roll into balls and place on a baking sheet putting a dent in the top of each cookie.
Bake for 6-8 mins depending on the size of cookies you've made.

Cookies are done when the bottoms are light brown - not the tops. If you cook them until the tops are brown the bottom will be burnt.