– Grind the softened butter with sugar to form a smooth paste, add the beaten eggs, flour, milk, cacao powder, vanilla sugar and whip. Fill 5 baking forms with the pastry, leaving the half headspace, and bake for 20 minutes. Cool.

– Beat the butter with the half of the sugar powder, add milk, the rest of the sugar powder, vanilla sugar and beat until homogeneous.

– Unmould the pastries, cut off the tops and cut out the butterflies. Decorate with the jam, cream and lime zest.