Preheat the oven to 200 C ( 180 fan) , Gas Mark 6.
Put the apples into a roasting dish and sprinkle with the sugar. Pour on about 50 ml water. Roast for 15-20 minutes or until the fruit is completely tender.
Remove from the oven and pour over 3 tbsps of the maple syrup. Leave to cool. When cooled, break the apples up roughly with a fork, keeping some texture.
Whip the cream until it holds its shape, then stir in the yoghurt and 2 tbsps maple syrup.
Just before serving layer the apples, cream and meringue in glasses, drizzling on a little maple syrup as you go. Finish with a layer of cream and a drizzle of maple syrup.