Self-frosted Chocolate Cake

• 8 springform (pan)
• 6 egg yolks
• 4 egg whites
• 2 batches
• 2 mixture a bowl (into)
• 3/8 whites chocolate mixture until nearly (into)
• 270 gr bittersweet chocolate
• 130 gr sugar
• 100 gr butter (unsalted)
• 65 gr flour