Wash oranges hot and rub dry. Finely grate the peel. Halve oranges, squeeze juice. Stir orange peel, butter and sugar until whitish and creamy. Separate the eggs. Mix egg yolks with jam and juice until smooth.
Stir in flour. Stir the egg yolk and jam mixture into the butter mixture. Add milk and stir in. Beat the egg white with the whisk of the hand mixer until stiff and fold into the egg-butter mixture.
Grease 4 ovenproof moulds (approx. 250 ml each). Spread the mixture in them. Place the ramekins in an ovenproof dish or fat pan filled with water so that they are halfway through the water bath. Bake in a preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: see
manufacturer) bake for about 25 minutes. Arrange the orange pudding immediately with caramel syrup.