14 Tbsp unsalted butter
1/2 cup plus 2 Tbsp bittersweet chocolate chips (Ghiradelli)
1 1/4 cups sugar
4 large eggs
1 tsp vanilla
1/2 cup plus 2 Tbsp unbleached flour
pinch of salt
Grease and flour a 9x9 baking pan. Preheat oven to 350F. Melt the butter and chocolate in a small saucepan over low heat, stirring frequently. Set aside to cool.
Cream the sugar, eggs and vanilla together. Add the cooled chocolate and mix until well blended. Sift flour and salt directly into the chocolate mixture. Gently mix the batter until well blended and no trace of the dry ingredients remain.
Spread batter evenly into prepared pan and bake 33 minutes or until a toothpick comes out clean or with only crumbs, no batter on it. Allow to cool for 1 hour. Cut into 16 squares.