Separate eggs. Wash lime hot, grate peel, squeeze juice. Beat egg whites and cream separately until stiff. Beat egg yolk and 70 g sugar until foamy. Add quark, lime juice and zest and stir until smooth.
Fold in cream and beaten egg white one after the other. Pour into a rectangular freezer jar (approx. 3/4 litre capacity) and freeze. Peel oranges so that the white skin is completely removed. Cut out fillets along the inner, thin skins.
Squeeze 3 tablespoons of juice from the rest of the oranges. Drizzle the fillets with liqueur. Melt the rest of the sugar in a pan until golden brown. Add orange juice. Let it boil until the sugar dissolves.
Turn the parfait out of the mould (if necessary, hold the mould briefly in hot water beforehand), cut it into slices and halve them diagonally. Rum pot, parfait and O
Caramel on top. Serve decorated with carambole and mint.