Start by preheating the oven to 190�C. Coat six ramekins with butter before dusting lightly with flour. Then, set them on a sturdy baking sheet.
In a microwave-safe bowl, melt the chocolate with the butter and let cool.
In a bowl, use a mixer to beat the eggs, yolks, and sugar on high speed (about 4 minutes) until it turns pale and fluffy. With a rubber spatula, gently fold in the chocolate, then fold in the cake flour just until there are zero streaks.
Scoop the batter into the prepared ramekins and bake for 15 minutes. The cakes will rise with the tops dry and the centers slightly jiggly. Let stand for 5 minutes.
In a bowl, start to beat the cream with the brown sugar, vanilla seeds, and lemon zest until soft peaks form. Add the mascarpone and lemon juice and proceed to beat until blended.
Use the tip of a small knife around each cake to loosen it, then unmold onto plates. Scoop the mascarpone cream onto the cakes and top with the brandied cherries and chocolate shavings.