Preparation

Salt and pepper the roast beef, place it in a static position roasting spit and cook in the SOFT 1 mode for 130 minutes, then brown in the grill mode for 5 minutes. Leave the meat to cool.

Peel the onions and wrap in thermal paper with the vinegar, wine, water, salt and sugar. Place the packet in a roasting spit closed with the lid of a flat cage and cook in the SOFT 2 mode for 30 minutes. Leave to cool.

Wash the beets and place them in thermal paper; cook these in the combination of the flat cage roasting spit too, in the SOFT 2 mode, for 100 minutes. Peel the beets and thinly slice two of them with a mandolin; blend the rest adjusting salt until you have a smooth puree.

Slice the roast beef, place in the serving dish with the sliced and creamed beets and with the sweet and sour onions.