Good news for those of you who are the proud owners of an iPhone (and like to cook): Michael Ruhlman’s Ratio app was released today. This app helps you to calculate the exact ratio for doughs, batters, custards, sauces and many more kitchen staples. The good news is that its not all in cups or ounces, you can set the app to recalculate in grams, milliliters and kilos. Even eggs are recalculated to 85.05 grams for the muffin recipe! (I usually go by : use 1 or 2, but that’s not how ratios work). There’s also an option to save your own favorite recipes and share them with others. I think this app is indispensible for enthusiastic cooks. Like Ruhlman puts it: With a ration, it’s not like knowing a single recipe, it’s like knowing thousands!