White Castle Hamburgers

• 900 gr beef (lean ground)
• 900 gr beef with (ground)
• 160 ml clear beef broth
• 160 ml clear beef broth
• 85 gr strained beef baby food
• 85 gr strained beef baby food
• 60 ml water (hot)
• 60 ml water until soft while you mix (hot)
• 36 gr meat mixture
• 24 gr dry onion (minced)