Scharffen Berger 70% Fudgy Brownies

6 ounces Scharffen Berger 70% Bittersweet chocolate
3/4 cup butter
1 1/2 cups sugar
3 eggs
1 teaspoon vanilla
1 cup flour
1 cup chopped nuts (optional)

Heat oven to 325 F.

Melt chocolate and butter in a double boiler over simmering water.

Stir sugar into chocolate until blended. Add eggs and vanilla. Stir in flour and nuts. Spread into a buttered 13" x 9" baking pan.

Bake 30-35 minutes or until toothpick inserted in center comes up with crumbs (not batter). Cool in pan.