Bazaar Vegetable Soup

• 1 onion
• 1 pasta
• 1/4 buckshot
• 2,400 ml water (cold)
• 260 gr carrots (sliced)
• 150 gr green split peas
• 65 gr baby lima beans
• 36 gr commercial chicken soup base
• 28 gr butter
• 26 gr pearl barley