Persimmon Pudding Cake

• 2 ripe persimmons (very)
• 130 gr sugar
• 130 gr sifted unbleached flour
• 120 gr skim ricotta cheese
• 120 gr liquid egg substitute
• 85 gr seedless raisins
• 80 ml corn oil
• 60 gr walnuts (chopped)
• 55 gr brandy
• 45 ml nonfat yogurt (plain)