Ricotta Cheese Cake

• 425 degree oven for the first
• 12 spring form which has been well buttered (pan)
• 8 egg yolks
• 8 egg whites
• 3 ricotta
• 1 rind of lemon (grated)
• 400 gr sugar
• 300 gr sugar
• 120 ml cream
• 100 gr sugar