For the cream, wash the oranges, rub dry and finely grate the peel. Squeeze the oranges. Bring milk and orange peel to the boil. Stir the pudding powder, sugar and juice until smooth, stir into the milk, bring to the boil again and simmer for about 1 minute while stirring. Pour the pudding into a bowl, cover with foil and let it cool down.
Let raspberries thaw at room temperature for about 15 minutes. Put Shortbread in a freezer bag and crumble finely with a dough roll. Whip cream until stiff. Stir the pudding until smooth and fold in the cream.
Layer the breadcrumbs and orange cream in a decorative bowl. Stir the fruit spread until smooth, mix with the raspberries and spread on the trifle.