Grilled Salisbury Steak In Belmont Sauce

• 1 clove garlic mashed
• 800 gr chuck (finely ground lean)
• 80 ml tomato ketchup
• 45 gr butter
• 16 gr onion (grated)
• 16 ml lemon juice
• 12 gr chives (finely chopped)
• 5 ml prepared mustard
• 5 ml worcestershire sauce
• 1 gr ran green bell (grated)