iPhone Screenshots


Free yourself from recipes! The best-selling cookbook, Ratio: The Simple Codes Behind the Craft of Everyday Cooking, by me, Michael Ruhlman, is now an iPhone app that will help you calculate amounts of ingredients in all the fundamental culinary preparations. When you know a ratio, you don’t know a recipe, you know 1,000. And this application does all the calculating for you.

“Cooking, like so many other creative endeavors is defined by relationships. For instance, knowing exactly how much flour to put into a loaf of bread isn’t nearly as useful as understanding the relationship between the flour and the water, or fat, or salt. That relationship is defined by a ‘ratio’ and having a ratio in hand is like having a secret decoder ring that frees you from the tyranny of recipes. ….Michael Ruhlman, in handing us mortals a power better suited to the gods, has changed the balance of kitchen power forever.” —Good Eats host Alton Brown

What You Get:

--THE 32 CRITICAL RATIOS that form the backbone of the culinary arts, with instructions: doughs, batters, meat preparations, custards, sauces (pasta dough and pizza dough, sponge cake and pancakes, fritters and crepes, stocks and sauces, crème caramel and chocolate sauce.

--A CALCULATOR that figures out how much of each ingredient you need, no matter how many or how few people you want to serve.

--An OUNCES-TO-GRAMS CONVERTER (ratios work no matter what unit you choose to use!).

--DELICIOUS VARIATIONS FOR RECIPES on all the ratios, ideas for the creation of new dishes according to your tastes.

--An easy way to STORE YOUR OWN RECIPES and notes that you’ve created from the basic ratios.

--Quick fun ways to SHARE what your cooking with your fellow cooks, on Facebook and on Twitter.

--Ratios is also a great way to understand and TWEAK YOUR OWN RECIPES, to help you make your pancakes even fluffier, your pizza dough crisper, your crème brulee richer.

What's New

Version 2.0.7

Bug fixes for iOS 10

Ratings and Reviews

Interesting - worth the price


Hi I think that this is an interesting app, which is probably worth the price compared to the price of a book.

However it only covers staples - eg doughs, sauces etc. I was expecting dishes like lasagne etc.

Hopefully, the app will be improved by letting you use the calculator on your own recipes, and secondly, letting people share ratio recipes. There should be a link to a ratio website as well.

Excellent kitchen tool

George Cockerill

Really useful partner to a brilliant book. Just tried it for pasta and it worked perfectly. Weighed the egg, Ratio told me how much flour to add. Knead, rest, roll, cut... perfect pasta. Now for some cookies.

Brilliant, and rubbish!


This is an excellent idea and works but there are only a few recipes\ratios, and this makes me resent paying the princely sum of three quid. For example what about these ratios: chicken liver pâté-butter, Yorkshire pudding batter, the various gnocchi. More information please.


ruhlman enterprises inc
7.3 MB
Food & Drink
Requires iOS 10.0 or later. Compatible with iPhone, iPad and iPod touch.
Age Rating
Rated 4+
© 2017 Ruhlman Enterprises, Inc.


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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