Heat oven to 425 F. Grease 6 (6 oz.) custard cups. Melt chocolate and butter in microwave oven in a glass mixing bowl. Stir in flour, confectioners sugar until well blended. Stir in eggs and egg yolks and mix until smooth. Stir in Raspberry, Natural Flavor Blend. Divide mixture evenly between custard cups. Bake at 425 F. for 11 minutes or until outside edge is firm but center is runny. DO NOT OVERBAKE. Remove from oven and let cool a few minutes before running knife around edge and inverting onto serving plate. Serve warm. If desired, dust top with confectioners sugar.