Carol's Favorite Fudgy Brownies

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8 oz. Scharffen Berger 79% bittersweet chocolate, chopped
8 Tbls unsalted butter
1/4 tsp salt
1/4 tsp vanilla extract
2 large eggs
1/3 cup flour
1 cup walnuts, chopped

Preheat the over to 325 degrees.
Butter an 8 inch square pan.
Melt the chocolate and butter in a double boiler.
Stir in the salt, vanilla, and sugar.
Stir in the eggs, one at a time, slowly.
Add the flour and mix vigorously until it becomes shiny and pulls away from the bowl.
Stir in the nuts.
Turn into the pan and smooth the top.
Bake for 30-40 minutes, until an inserted toothpick comes out moist but clean.
Cool on a rack.
Serve with blackberry sorbet and whipped cream! (optional)