Sauce too thin: Bean liquid not added or cream added too early. Keep all bean liquid. Add cream after 5-7 min of bean simmer only. Mushy beans: Simmered past 7 minutes. Set a timer check at 5 min. Grainy Parmesan: Pre-shredded used. Always grate fresh from a block off the heat. Vegan: Coconut cream + nutritional yeast + white miso both off the heat