This recipe came from the November 1983 issue of Mademoiselle. It's very chocolaty and has always been one of my favorites.
- Preheat oven to 350 degrees F. Grease and flour a 9"x13" pan (or use cocoa to flour the pan).
- Melt chocolate and butter in a double boiler.
- In a large bowl, beat eggs with sugar. Add melted chocolate mixture and vanilla; beat until well blended. Add flour and stir until well mixed. Stir in chocolate chips.
- Pour batter into pan and bake for 30 minutes. Do not overcook.