Chef Andrew Berman's Potato

• 4 potatoes (peeled)
• 1 onion (diced)
• 1 sevruga caviar
• 950 ml chicken stock
• 85 gr prepared horseradish
• 70 gr smoked salmon julieened
• 28 gr butter
• 22 gr pickled cabbage (red)
• 5 gr dill (fresh chopped)
• 1 ml cream (heavy)