Hi im fairly new to cake decorating i have now been doing this for about 8 months and am trying to learn as much as possible. Anyhow i have a wedding cake this weekend fairly easy square 3 tier stacked but my question is how to make sure that my square corners dont droop after i put fondant on and yes i use mmf i have seen pics that arent drooped and some that are. i am just trying to cover my basics im thinking that the drooped corners could be perhaps a leveling problem.....any feedback would be very much appreciated ty!!

AHi becca!

Are your corners sharp and squared before you put fondant on your cake? If not, then this is likely the problem.

(I still struggle with the corners on a square cake too!)

I don't know if you've used ganache before, but it is perfect under fondant and will give you really nice and sharp edges.  If you're using buttercream, here's an old tutorial to get you started.You'll want to ice it and get it neat and sharp before putting on the fondant. 

http://cakecentral.com/a/how-to-frost-a-square-cake

Once it's iced as smoothly and crisp as possible, then you can cover it in fondant.

My last tip of advice is that you want to use pans that give you a perfect square edge. Some pans have a slight curve to the edges. You can still ice them and cover them with fondant and with skill get the edges crisp, but I find that starting with sharp edges is a huge key. I love Magic Line pans for this reason!

thanks so much!! im all done still didnt get the edges as sharp as id like but ill post pic soon

Very nice! Did you end up ganaching it or did you use BC? 

i used buttercream but need to find out what and how to use ganche and ty!!

I was just curious! :) There are a ton of tutorials on how to ganache a cake! If you're visual then you can search it on YouTube and watch! I haven't done one yet but the corners they get are beautiful!

i watched some today and yea im a visual learner im deff going to try this ty so much for all the help!

There are loads of video courses at Pretty Witty Cakes on how to create perfect square edges using ganache or fondant if you're interested.  They have lots of other techniques that you can pick up too...

i'll look into it ty!!! :)