Hello, this is my first time posting on this site so bare with me! Lol! Ok, so I need a no fail recipe for white chocolate ganache STAT! I've tried two so far. This is for a wedding cake, which has two cake dummies at the the bottom and a 6 inch real cake at the top (see photo). They wanted dummies because the cake is just for decoration and they wanted to use it for the wedding and reception, so I made a cake for the top that they served the wedding party at the wedding and now I need to make another one for the top for the reception (the reception was planned in a different location, a week after the ceremony). Anyways, I tried two recipes for the white chocolate ganache. One, I found on here that called for 1.3 cups of white chocolate chip and 1 cup of heavy cream, and the other one from Martha Stewart. The Martha Stewart one called for 8 oz. of good quality white chocolate and 3/4 of a cup of heavy cream. The problem? Neither one set up! I waited, I refrigerated and nothing! Luckily, I was able to whip the Martha Stewart ganache and still use it, but it was very light and made my fondant crack. I made it work, but this time I want a recipe that comes out like regular chocolate ganache, you know, fudgy! Please help! Where did I go wrong? And can someone give me a chocolate to cream ratio that will set up like the regular chocolate ganache? Any input is much appreciated, thank you! 
I'll share what works for me, but let me warn you, it's not fancy or high-end.
12oz. bag of Nestle white chocolate morsels (which measures out to 2 cups of chips) + 1/2 cup of cream...
It sets up to a peanut butter consistency.
I typically make a double batch for a cake project...I'm a hobbyist, I don't do huge wedding cakes.
Thank you! I have already bought some good quality white chocolate, so I kinda want to use it. I tried a batch with white chocolate chips and It was quite runny. Then when I tried to whip it, it turned all curdly. Gross! Lol! But thank you! Maybe I will try this one next time before I spend a bunch of money on good quality chocolate! 
By the way...
If this is the recipe you tried: http://cakecentral.com/a/perfect-white-chocolate-ganache-frosting-perfected
It's not 1.3 cups of white chocolate chips...
it's
1. 3 cups of white chocoate chips
2. 1 cup of heavy cream
3. pinch of salt
Very confusing the way it's printed.
LOL...it's not your fault...the way it's printed makes it EASY to misread....
Also, I've made my ganache recipe using Bakers before...same amounts I posted...it worked fine, just slightly yellower in color...
I've also tried the Guittard white chips...YUM...those were the best so far because they were less sweet.
I would stick with them actually, but I can't find them locally...
I bought 3 bags on-line once and w/ shipping I think it was 21 bucks or so...crazy, but I really wanted to try them.
Oh Golly, yeah that's pricey! I live in a remote area. All we really have here is a Walmart, unless you want to drive two hours to another store! That's why I've stuck with the baker's. But, it's pretty expensive too! Almost $3 for only four ounces! Do you know how many ounces are in a bag of the Guittard white chips?
The Guittard's is 12oz also...
Here's where I purchased them: http://www.groovycandies.com/pc/viewPrd.asp?idproduct=102374&idcategory=671
I'm not in a remote area, but the white ones are still really hard to find for some reason...
Other people have complained about it in their areas too.
...and thank you so much...your cakes are wonderful too!!
I like the Guittard as well. I found that if I order a 25lb bag (of vanilla apeels) from Bakers C&C that even with the shipping it costs me about $3.30/lb. A 25lb bag fits perfectly in one of those larger plastic storage containers that you can get in the scrapbooking section at Michaels or JoAnnes. Love the taste of Guittards.
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I like the Guittard as well. I found that if I order a 25lb bag (of vanilla apeels) from Bakers C&C that even with the shipping it costs me about $3.30/lb. A 25lb bag fits perfectly in one of those larger plastic storage containers that you can get in the scrapbooking section at Michaels or JoAnnes. Love the taste of Guittards.
Wow! That is a much better value than $3 for 4 ounces! I'll look into it! Thank you guys!
@Kathy107 - The ganache is pretty sweet and quite rich! I just made a batch out of the baker's chocolate, and it is so so good! It also set up perfectly!
Thank you @FlourPots for the ratios, it worked out perfectly this time. I will be trying out the Guittard next time!
You did!!
Alright!
I'm going to definitely check mine...maybe now they're carrying them! They only had the semi-sweet, milk and I think mint chips when I looked last...awhile ago...and the smaller supermarkets I normally shop for food at still aren't carrying them, I know that, but maybe Wal-Mart is now...Oh I hope so!
Thanks very much!
AYes it's a ratio of 3:1 for white chocolate ganache.
...in fact, they didn't have any Guittard's at all!
AHopefully this link works but if you do a search for how to ganache a cake inspiredbymichelle.com.au comes up I thought she was very helpfull, not that you don't know how to ganache the cake but she really shows what the ganache should look like and works from the ratios 3 parts white chocolate to 1 part cream for white chocolate ganache I liked her ganache videos (it's 3 parts)
This might be a silly question ~ but are the white chips that sometimes say "vanilla" white chocolate?
I think it was the Guittard's brand, but not entirely sure.
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