I have been using cooked starch for years now. I couldnt find Stay Flo where I live so I made my own. I dont have a recipe per say, I just know how its supposed to look and feel as I'm cooking it. I recommend adding washing borax to the starch, it will preserve the starch for a really long time. Without the borax the starch will go sour, it doesnt take much, just a couple of spoonfuls.I also add a spray of my favorite lavender body spray, just one push on the pump. It gives the starch a nice smell and doesnt change the nature of the starch. I have a half empty pickle jar of my last batch in the fridge, its about 5 months old now and still as fresh as the day it was made thanks to the borax. I normaly make a batch every 6 months or so and keep it in the fridge.