Peel 2 oranges so that the white skin is completely removed. Cut out the pulp between the parting skins. Squeeze the parting skins vigorously. Squeeze the remaining orange. Stir juice, mascarpone, quark, milk, vanillin sugar and sugar until smooth.
Arrange the orange fillets in 4 glasses, fill with mascarpone cream. Decorate with figs, orange slices and lemon balm as desired.