Bring the milk with a few drops of vanilla flavor and sweetener to the boil, stir in the rice and cover it and leave to swell for about 30 minutes.
Drain the cherries. Beat the egg white with salt until stiff and fold into the rice.
Put half of the rice pudding in a flat baking dish, spread the cherries and the remaining rice pudding over it. Bake the rice pudding and cherry casserole in a preheated oven at 180 ° C for about 20 minutes.