Soak toast in cold water. Peel and finely chop the onions. Squeeze the toast well. Knead minced meat, ground pork, half the onions, eggs, mustard, thyme and squeezed bread.
Season to taste with salt and pepper. Form approx. 18 meatballs from the mixture with moistened hands. Place the meatballs in an ovenproof dish. Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for approx. 25 minutes.
In the meantime, clean the mushrooms and cut them into thicker slices. Heat the oil in a large pan and fry the mushrooms in it, turning them over. Add the rest of the onions and fry briefly.
Season with salt and pepper. Add 400 ml water and cream. Add soup powder and stir in. Bring to the boil while stirring and simmer for about 3 minutes at low heat while stirring several times. Take the meatballs out of the oven, pour mushroom cream over the meatballs and bake at the same temperature for another 20 minutes.
Remove from the oven, garnish with cranberries and marjoram. Country bread tastes good with it.