Preheat oven to 425 degrees F. Grease 8 (6-oz.) custard cups or souffle dishes. Place on baking sheet.
Microwave chocolate and butter in large microwaveable bowl on HIGH 2 min. or until butter is melted. Stir with wire whisk until chocolate is completely melted. Add 2 cups powdered sugar and the flavored instant coffee; mix well. Add whole eggs and egg yolks; stir until well blended. Stir in flour. Pour batter evenly into prepared custard cups.
Bake 15 to 16 min. or until cakes are firm around edges but soft in the centers. Let stand 1 min. Run small knife around cakes to loosen. Carefully invert cakes onto dessert dishes. Garnish with the raspberries and 2 Tbsp. powdered sugar. Serve immediately.