White Chocolate Devils

• 1 chocolate decoration (white)
• 1 egg
• 1 chocolate filling (white)
• 300 ml cream (heavy)
• 240 ml buttermilk
• 170 gr semisweet chocolate coarsely (chopped)
• 130 gr all purpose flour
• 60 gr unsweetened chocolate
• 60 gr chocolate coarsely (white)
• 60 gr chocolate (white)