Killer Triple Chip Brownies

Ingredients

16 tb butter
2 c sugar
8 oz bittersweet chocolate
2 ts vanilla extract
4 eggs
1 c unbleached all-purpose flour
1 ts salt
1 c walnuts
2 c semisweet chocolate
2 c milk chocolate
2 c butterscotch bits

Instructions

PREHEAT OVEN TO 350F. Line an 8 3/4-by-13 1/2-inch glass or metal pan with