- 5 (1 ounce) squares unsweetened chocolate
- 2/3 cup butter
- 4 teaspoons hot water
- 2 teaspoons instant coffee granules
- 3 egg yolks
- 3 egg
- 1 cup white sugar
- 2 teaspoons vanilla extract
- 2 cups all-purpose flour
- 1 teaspoon baking powder
- 2 tablespoons unsweetened cocoa powder
- 1/2 cup walnuts, toasted and chopped
- 3 (1 ounce) squares unsweetened chocolate, chopped
- 1/3 cup sour milk
- 1 tablespoon white sugar
- 1 teaspoon rum (optional)
- 1 cup walnuts, toasted and chopped
- Preheat oven to 350 degrees F (175 degrees C). Grease and flour a 9×9 inch square pan.
- In a double boiler, or in the microwave, melt 5 squares of unsweetened chocolate with 2/3 cup butter. Combine hot water and instant coffee, stir into the melted chocolate. Set aside to cool.
- In a medium bowl, beat in eggs, egg yolks, and 1 cup sugar until smooth. Stir in vanilla. Sift together flour, baking powder, and cocoa; mix into the egg mixture. Next, mix in the cooled chocolate mixture. Stir in 1/2 cup walnuts. Spread the batter into the prepared pan.
- Bake for 30 to 35 minutes in the preheated oven. Cool completely before frosting.
- To make the frosting, melt the remaining 3 squares of unsweetened chocolate in a double boiler. Stir in sour milk, and 1 tablespoon sugar; stir until smooth. Remove from heat, and stir in the rum. Spread over the cooled brownies, and sprinkle with remaining walnuts. Allow the frosting to set before cutting into bars.