- ½ cup (125 mL) butter
- 3 squares (1 oz/28 g each) unsweetened chocolate, chopped
- 1¼ cups (300 mL) granulated sugar
- 1½ tsp (7 mL) vanilla
- 3 eggs
- 2/3 cup (150 mL) all purpose flour
- ½ tsp (2 mL) baking powder
- ¼ tsp (1 mL) salt
- 9-inch (2.5 L) square cake pan, greased
- Preheat oven to 375°F (190°C)
- In a saucepan over low heat, melt butter and chocolate, stirring constantly, until smooth. Remove from heat. Stir in sugar and vanilla, mixing well. Whisk in eggs, one at a time, beating lightly after each addition.
- Combine flour, baking powder and salt. Stir into chocolate mixture until well blended. Spread evenly in prepared pan.
- Bake in preheated oven just until set, 25 to 30 minutes. Let cool completely in pan on rack. Cut into bars.