- 1 (1 ounce) square unsweetened chocolate
- 3 tablespoons butter
- 1/2 cup white sugar
- 1 egg, lightly beaten
- 1/2 teaspoon vanilla extract
- 1/4 cup all-purpose flour
- Preheat oven to 350 degrees F (175 degrees C). Grease 2 serving-size oven-proof custard dishes.
- Place chocolate and butter in a small microwaveable bowl. Microwave on high 1 minute. Stir until chocolate melts completely. Add sugar. Stir in beaten egg and vanilla extract. Mix thoroughly. Add flour; mix well. Divide brownie batter between 2 prepared custard dishes.
- Bake in preheated oven until center of brownies has risen and surface appears glossy, 25 to 30 minutes. Let cool slightly before serving.