Mom's German Meatballs

• 2 eggs
• 1/2 in a skillet (heavy)
• 1/2 onion dice
• 3,800 ml fa sauce the of water
• 950 ml water
• 900 gr beef (ground)
• 240 ml catsup
• 45 ml catsup
• 38 gr cornstartch
• 16 ml vinegar