I've posted this recipe on Dr. John Berardi's site. No one slammed it.
For post workout, provided the workout is hard, and mine always are, that many carbs are not an issue. The body utilizes them well for liver and muscle glycogen replenishment. I do not have this kind of shake at any other time as it would go to fat stores.
From Berardi's Post Workout Nutrition Article:
http://www.johnberardi.com/articles/nutrition/importance.htm
Therefore, by consuming a large amount of carbohydrates, you will promote a large insulin release, increase glycogen storage, and increase protein repair. Research has shown that a carbohydrate intake of 0.8 to 1.2 grams per 1 kilogram of body weight maximizes glycogen synthesis and accelerates protein repair. However, unless you've had a very long, intense workout, 1.2g/kg may be a bit excessive as excess carbohydrate can be converted to bodyfat. Therefore I recommend 0.8g of carbohydrate per 1 kilogram of body weight for speeding up muscle carbohydrate replenishment while preventing excess fat gain (van Loon et al 2000a).
I'm 85.3kg. My workouts are 1 1/2 - 2 hours long, supersets currently at 3x15 w/ 75s rest. I consider that long and hard.
85.3kg * 1.2g/kg = 102g carbs. I'm actually at a deficit. But say I should go middle of the road, 90g of carbs isn't too much higher than 85g.
Since a weight lifting program, again, if done hard enough, will raise the metabolism for up to two days, and all the carbs of my regular feedings come from only vegetables (especially spinach, I love the stuff), I'm losing fat, not putting it on, in the long run.
A PWO shake should be between 2:1 - 4:1 ratio of carbs to protein.
And to reiterate, buy "New Rules of Lifting." The workouts in it are intense and will hand you your azz over and over for as long as you like.