Amazing Brownies

This is a truly amazing brownie recipe. Very rich and chocolatey. I've been meaning to post the recipe for a while but I keep forgetting. It kind of has weird measurements...

2 1/4 sticks of butter or margarine (about 1 cup + 2 tbsp)

2 1/4 cups sugar

5 eggs

2 tsp vanilla

3/4 cup + 1 tbsp flour

3/4 cup + 1 tbsp cocoa

1 tsp salt

1/2 cup chocolate chips

(Optional 3/4 cup nuts or 1/2 cup other flavoured chips, ie white chocolate, butterscotch or peanut butter)

Preheat oven to 350. Line a 9x13 pan with parchment paper and then spray with PAM. In a saucepan melt together butter and sugar, until butter is completely melted. Allow to cool slightly, then transfer to mixing bowl. Beat in eggs, one at a time. Stir in vanilla. Add flour, cocoa and salt. Stir gently until well incorporated. Stir in chocolate chips and nuts. Bake for 35 min. Cool completely before cutting.