Preheat oven to 350F. Grease a 13 x 9" baking dish.
Cream butter and sugar until fluffy, about 5 minutes. Add eggs one at a time, then vanilla. Combine dry ingredients and pour in on low speed. Mix only until batter is uniform
Bake 35 minutes or until a toothpick inserted removes clean.
Recipe by Jellibean Journals at https://jellibeanjournals.com/cocoa-brownies/