melt butter over medium heat untill brown bits form at the bottom, pull off the heat and immediately add cocoa powder, sugar, salt, 2 teaspoons of water, and vanilla and stir till combined....let cool for about 5 minutes then add the eggs one at a time, whisking briskly. add flour stir 60 strokes. add chopped walnut pieces and then put in 8x8x2 pan lined with foil and sprayed with cooking spray. cook 25 min at 325