Preheat oven to 180C. Prepare 10 muffin mould (set aside) you can also use cupcakes liners.

In a heatproof bowl, put chocolate and butter. Heat mixture in the microwave for 30 second. Then stir it until melted. Set aside

In a small bowl sift flour, cocoa. Set aside.

Whisk eggs and sugar on high speed for 4-5 mins. Reduce speed to low and add in chocolate mixture. Stop the machine. Add flour mixture and fold until combined.(5-6 fold)

Pour the batter into the mould about ¾ full. Bake for 15 minutes. Enjoy!