makes one dozen
8 ounces milk chocolate, chopped
8 Tablespoons butter, cut into pieces
1/2 cup sugar
2 teaspoons vanilla extract
3 large eggs, at room temperature
1/2 cup all-purpose flour
1/2 cup cake flour
1. Heat oven to 350ºF. Grease a glass or ceramic 8-inch by 8-inch baking dish; set aside.
2. Add chocolate and butter to a large microwave-safe bowl. Cook on high for 2 minutes*, or until chocolate and butter are melted. Stir to combine.
3. Using a rubber spatula, stir in the sugar. Add eggs and vanilla; stir until mixed well. Sprinkle flours over chocolate mixture and fold in using spatula. Pour into prepared baking dish and use spatula to spread batter to edges if necessary. Bake for 35 minutes or until center is set. Let cool in pan for 5 to 10 minutes. Cut into 12 even squares using a very sharp knife.
*based on a 1000 watt microwave.