For the crust, dice the toast coarsely and grind finely in the universal chopper. Wash lemon hot, grate dry and grate peel thinly. Mix 150 g butter, toast crumbs, lemon zest and herbs. Season with salt and pepper
Wash the meat, dab dry. Spread crumb crust on the roast and press on. Put into an oil-strewn roaster or the fat pan of the oven and roast in a preheated oven (electric range: 175 °C/ convection oven: 150 °C/ gas: level 2) for approx. 1 1/4 hours
In the meantime peel, wash and slice the carrots. Clean, wash, quarter and cut cabbage into strips from the stalk. Remove roast from the oven after about 30 minutes. Arrange vegetables around the roast. Season with salt and pepper and continue cooking
Peel and wash the potatoes and cook them in boiling salted water for about 20 minutes. Mix cream and broth and pour it over the vegetables after about 15 minutes in the oven. Bring milk and 50 g butter to the boil. Drain the potatoes, add the milk-butter mixture and mash with a potato masher until mashed. Season to taste with salt and nutmeg. Arrange roast with vegetables. Add mashed potatoes