Lunchroom Ladies Brownies-50 year old recipe!

Ingredients:
1 cup butter
1/2 cup cocoa
2 cup flour
2 cup sugar
4 eggs
4 tsp vanilla
1 cup chopped nuts

Directions :
Mix ingredients then pour in 9 x 13 pan
Bake 20-25 minutes at 350 degrees
Check at 20 mins