Chocolate tenerina

Name: Chocolate tenerina
Prep time: 20 min
Cook time: 30 min
Total time: 50 min
Yield: 8 servings
Ingredients: 300 gr of Dark cooking chocolate; 4 Medium egg; 3 tbsp of Plain flour; 150 gr of Unsalted butter; ½ tsp of Vanilla extract; 150 gr of White sugar