I want to makeahelicopter and an airplane out of rice krispie treats... my question is, should i try to mold it into shape while mixture is still warm...? or form the mixture into blocks and carve the shapes out? i've never worked with RKT's before, and could use some pointers. Thanks
I thought you meant your Krispy treats were getting moldy!! 
Oops! I'll stay out of this one hehe.
Personally, I have NEVER had any luck with RKT holding up. I don't know it its the humidity in Florida or what. I manage to make, mold and let sit for a few days and still the soften with either fondant or BC. I have tried all the no butter, crushed cereal, more cereal....etc. 
I was just wondering what would happen if you added powder egg white? If it worked to stiffen royal, maybe it would work with RKT??? Anybody ever try such a crazy idea? 
I know "The Duff" uses them all the time and never seems to have any disasters, or at least that they show on TV.
I have would think using them while warm (slighty warm) would work best. I use the ones out of the package.
I've tried the homemade ones and the packaged ones. I have had so much better luck with the ones that you can buy that are already packaged. They don't taste as good as the homemade ones but they hold up so much better for me. I usually put them in the micro for about 15 sec intervals until they are warm and then put crisco on my hands and mold away. I tried sculpting a little bit on my castle greyskull but just molding it seemed to be much easier to me. JMO
I mold it while they are still warm. I grese my hands up good first.
Personally, I have NEVER had any luck with RKT holding up. I don't know it its the humidity in Florida or what. I manage to make, mold and let sit for a few days and still the soften with either fondant or BC. I have tried all the no butter, crushed cereal, more cereal....etc.
I was just wondering what would happen if you added powder egg white? If it worked to stiffen royal, maybe it would work with RKT??? Anybody ever try such a crazy idea?
I know "The Duff" uses them all the time and never seems to have any disasters, or at least that they show on TV.
I hate to hear this. 
I was going to make a tree from RKT today for a cake next week. I am in NC. I bought the stuff to make them, but maybe I will try the packaged ones instead. If you let them air dry do they get harder as they sit? I need to cover it with chocolate bc and chocolate mmf of course. Will that soften up the RKT? What if you pack it really hard? Does that help? If I pack them tightly, could I still get a skewer into it if the RKT is still a little bit soft? (to hold it upright into the cake)
The only ones I use are the packaged ones. I used them to make the baby feet, horns on my steer cake, and the head for my spider man. I had no problems with them holding their shape. I rubbed my hands with butter and squished (I mean, molded) them till they were in the right shape.
I use the ready-made ones, because my homemade ones are too greasy for some reason. I made a van about a month ago & they worked like a charm!
I always used homemade but I decrease the amount of butter and marshmellow that I put in them. This makes them less greasy. I always wait until they cool because they tend to loose their shape when they are too warm. I mold them in the shape I want but do not carve them. I guess you could though. I then 
cover with fondant. I do not add bc. It will stick without it. To get a smoother look, sometimes I have to add a second layer of fondant. I have used this method alot with great success! Hope this helps.
I live in SC and first tried RKT a few weeks ago as a lid for a treasure chest. I decreased the butter, crushed some of the rice krispies, and packed them very tightly. I made them a day in advance and then frosted with bc. They held their shape well, but did need a board underneath for support. Next time I will omit the butter and probably crush more rice krispies. No problem getting a sharpened dowel into them.
I live in SC and first tried RKT a few weeks ago as a lid for a treasure chest. I decreased the butter, crushed some of the rice krispies, and packed them very tightly. I made them a day in advance and then frosted with bc. They held their shape well, but did need a board underneath for support. Next time I will omit the butter and probably crush more rice krispies. No problem getting a sharpened dowel into them.
Thanks a bunch valerie. I have things on hand to make RKT and I also have a box of the packaged ones. I am going to try the packaged ones for the tree and see how it works. If it fails I will use your tips to make a batch...although now I have a taste for RKT with butter...so I was going to save the ingredients so that we could eat them! 
Personally, I have NEVER had any luck with RKT holding up. I don't know it its the humidity in Florida or what. I manage to make, mold and let sit for a few days and still the soften with either fondant or BC. I have tried all the no butter, crushed cereal, more cereal....etc.
I was just wondering what would happen if you added powder egg white? If it worked to stiffen royal, maybe it would work with RKT??? Anybody ever try such a crazy idea?
I know "The Duff" uses them all the time and never seems to have any disasters, or at least that they show on TV.
If you add royal to the RTK or over the molded pieces of RTK, they become as hard as a rock! and are not suitable to eat anymore. They're hard enough to take someone's tooth out! But they do get the job done, just make sure that no one will be eating them.
HTH
HI! I am new to using RKTs for molding projects for my cakes and needing some advice. I made my rkts according to recipe of 3T melted butter a 10 oz bag of marshmellows and 6 cups of rice krispies. After mixing together and putting in the pan..I let them cool just a bit and then cut out the circles I needed for the cake. I am trying to make ears for Minnie Mouse cake. But I can't seem to get them to harden or become firm. I had seen where some of you put them in the freezer. Should that work for these as well and then maybe tomorrow they will be ready? I planned on covering them with black candy melts. I hope that helps them hold together as well. Any thoughts would be appreciated :)
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