Drain the pears and collect the juice. Halve the pears and put them in a pot. Bring to the boil briefly with red wine, 1/8 litre pear juice, 300 ml water, black currant jelly and cloves.
Season to taste with lemon juice. Let it simmer for about 10 minutes at low heat. Arrange soup on plates. Add meringue. Decorate with lemon zest.