The recipe yield is:
Preheat oven to 350~. Butter a 9x13" pan. Melt chocolate; set aside to cool. 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. Divide batter in half. To one half, add almond extract, chopped pistachios, and enough green food color to tint batter a light green (2-4 drops). To other half of batter, stir in melted chocolate and chocolate chips; mix well. Spoon batter alternately into pan, checkerboard fashion. Swirl batters to get a marbled effect. Bake for 45 minutes or until tested done. Cool completely; cut into bars.
Brownies; Nuts; Chocolate