Pistachio Chocolate Swirl Brownies

A chocolate brownie recipe with pistachios.

2 oz. unsweetened chocolate
1 cup butter, softened
2 cups sugar
1-1/2 teaspoons vanilla
4 eggs
1-3/4 cups flour
1/2 teaspoon salt
1/2 teaspoon almond extract
1 cup pistachios, chopped
Green food coloring
1 cup chocolate chips

1. Preheat oven to 350 degrees F. Butter a 9"x13" pan.
   
2. Melt unsweetened chocolate; set aside to cool.
   
3. In large bowl, beat together butter, sugar, and vanilla until light and fluffy. Beat in eggs, one at a time. Blend in flour and salt.
   
4. Divide batter in half.
   
5. To one half, add almond extract, chopped pistachios, and enough green food color to tint batter a light green (2-4 drops).
   
6. To other half of batter, stir in melted chocolate and chocolate chips; mix well.
   
7. Spoon batter alternately into pan, checkerboard fashion. Swirl batters to get a marbled effect. Bake for 45 minutes or until tested done.
   
8. Cool completely; cut into chocolate brownie bars.