Acorn Squash Soup W/corned Beef & Walnuts

• 4 chives
• 2,800 ml water
• 1,900 ml corned beef broth
• 700 gr corned beef (lean)
• 425 gr acorn squash
• 350 ml cream (heavy)
• 110 gr prepared horseradish
• 85 gr walnuts