Colorado Chip Brownies - cooking recipe

Ingredients

1 cup butter
4 ounces unsweetened chocolate
2 cups sugar
4 large eggs, beaten
2 teaspoons vanilla extract
1 1/2 cups flour
1/8 teaspoon salt
6 ounces semi-sweet chocolate chips
2 cups chopped nuts (optional)

Preparation

Melt butter and chocolate in top of double boiler over simmering water.
Cool to room temperature.
In large mixing bowl, cream butter, sugar, eggs, and vanilla; blend in chocolate mixture.
Add flour and salt; mix well.
Stir in chocolate chips and nuts.
Spread batter into greased and floured 9x13-inch pan.
Bake at 350 degrees for 25- 30 minutes.