01 -
Preheat the oven to 220°C. Generously butter four 180 ml ramekins and dust them lightly with flour, removing any excess.
02 -
Using a heatproof bowl over a pot of simmering water, melt the dark chocolate and unsalted butter together, stirring until smooth. Remove from heat and incorporate the whole milk.
03 -
In a separate bowl, whisk eggs, egg yolks, and powdered sugar together until the mixture becomes thick and pale.
04 -
Gently fold the melted chocolate mixture into the whisked egg mixture until smoothly combined.
05 -
Sift flour, ground cinnamon, and salt over the batter. Fold in these dry ingredients until just integrated.
06 -
Evenly distribute the batter into the prepared ramekins.
07 -
Bake in the oven for 11 to 12 minutes, or until the edges are set but the centers remain soft.
08 -
Allow to cool for 1 minute. Run a knife around the edges to loosen, then invert each cake onto a plate.
09 -
Dust with powdered sugar and serve promptly, optionally accompanied by vanilla ice cream or whipped cream.