Lemon-ginger Marmalade

• 3 lemons
• 2 drops should merge
• 1 ginger
• 1 year
• 1/4 from top
• 900 ml water (cold)
• 800 gr sugar
• 800 gr sugar to lemon mixture
• 700 ml water to bowl with lemon (cold)
• 120 ml ginger juice