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Coliseum cake

post #1 of 52
Thread Starter 
I've been asked to do a coliseum cake, with steps inside, I was thinking of using RKT as a wall around the cake and covering it with fondant then using Pasillage as the outer wall that has half fallen down and cut out the arches so you can see through them. I've done anything like this and never used RKT or Pasillage so very worried, does anyone have any advice? I'd be very grateful!!! (I'm in the uk btw!) xx
post #2 of 52

i would use crisped up fondant because it is more forgiving that pastillage--i crisp it up with added cornstarch--for example knead in a 1/4 to a 1/3 cup to a pound of fondant--adding tylose is also very popular for crisping up fondant

 

i like fondant because it has a forgiveness factor absent in pastillage~~

 

pack the rkt down real real tight in the general shape--just a bit bigger all over and let them set up overnight

 

then you can trim them --and you can get them super smooth with a microplane

 

rkt are good but they can require some support

 

the thicker the rkt the better it supports itself so i think you'll need this thinner in places or at least thinning out

 

so for an unbeatable substance depending on how thin you want it--you could whirl the rkt in a food processor then make the rkt out of that and pack that down nice & tight and it's very sturdy--would hold up under the fondant covering

 

but keep in mind you may need doweling too

 

maybe use a combination of both out-of-the-box krispies and food-processed krispies

 

i would love to see pictures if you feel you want the world to see your work

 

some cakes i can't wait for someone to hack them to bits with a machete so no pressure!!! icon_lol.gif 

the only way to see the rainbow is to look through the rain

 

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the only way to see the rainbow is to look through the rain

 

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post #3 of 52
Thread Starter 
Thank you so much for replying so quickly!! Will the firmer fondant hold up as a wall? I've made butterflies and they've not gone hard, i'm worried a wall might collapse? Thank you for the RKT advice, I didn't know you could do all that with them!!! They seem very popular with all the tv shows!!! I'm happy to put my photos up, I have to have the cake ready for next Saturday, I'm picking up the 12" oval cake tin tomorrow!!!! Arghhhhh!!!
post #4 of 52

that is what i would do because i know i can get the fondant to cooperate with me

 

pastillage would work but it's not my first choice

 

modeling chocolate is another idea

 

so you need to use what is best for you ;)

the only way to see the rainbow is to look through the rain

 

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the only way to see the rainbow is to look through the rain

 

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post #5 of 52
Thread Starter 
I thought about modelling chocolate but I've never used that either!!! Would you suggest I use the strengthened fondant over the RKT as well?
post #6 of 52

if i was doing this i'd use store bought fondant right out of the bucket over the rkt

 

maybe knead in some shortening but no extra starch or sugar is how i would do it

 

but it doesn't matter how i would do it

 

in fact you need to do a little testing asap

 

make a little bit of everything asap and see how it handles for you

 

so you still have some time to scramble ;)

the only way to see the rainbow is to look through the rain

 

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the only way to see the rainbow is to look through the rain

 

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post #7 of 52

be prepared to perhaps black out the arches if necessary instead of cutting them ;)

 

you are biting off way too much in one week's time learning all these new things

 

i'm not saying it can't be done but dang wow it'd be too much for me if i hadn't started this a week ago

the only way to see the rainbow is to look through the rain

 

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the only way to see the rainbow is to look through the rain

 

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post #8 of 52
Thread Starter 
You're right!!! Especially as I have a 6yr old and a 4 yr old running around at the same time!!!! I started watching some US cake tv shows and got all these ideas!!!! Thank you so much for all your help!! X
post #9 of 52

i'll help some more --i'm just freaking out some for you ;)

 

at least you don't have a full time job and going to school on top of the two kidlettes while catering meals on the side do you?  :)

 

for all the arches--i'd make cookie cutters--so you have this drawn to scale do you???

 

how are you going to get the rkt molded???

the only way to see the rainbow is to look through the rain

 

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the only way to see the rainbow is to look through the rain

 

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post #10 of 52

possibly a more realistic way to approach this is to bake a two layer oval and make rkt* for the second tier which is the higher side of the colosseum

 

with all due dilligence to the proper doweling it needs to stand up there

 

and use black out for the arches and adorn around the arches with piping and fondant accents

 

you could do two layers of fondant-- one black then white on top and cut away the white to reveal the  arches--but that's not for the timid nor for newbies either

 

like i said yes it is possible the way you said but oh my with all new substances to make correctly and perform to their fullest extent--possible but not likely

 

but the colloseum is in ruin so a low threshold there :) jk jk  icon_lol.gif

 

*and you can use the empty cake pan to mold the rkt the shape you need

 

unless you already have a mold for that?

the only way to see the rainbow is to look through the rain

 

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the only way to see the rainbow is to look through the rain

 

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post #11 of 52
Thread Starter 
Thank goodness no!! They're on holiday so they'll be running about!!! I was hoping to use the pan as mould for the RKT but I'm hiring it so will only have it for a few days. It's oval and I didn't want to buy one! I have bought sone arches moulds but they were due last Monday, I was sent the wrong thing and they haven't sent the right ones yet!!! I was going to wait till I got the pan before I drew it but now it feels like I should havedone it already!!!! Thank you for all this advice!! X
post #12 of 52
Thread Starter 

I've just spent the last 3 hours trying to draw the Colosseum to scale, and worked out that the walls would end up being 4" high!!! And that would be the higher one!! If I work it out using my arch cutter ( 2") the height of the cake would be 13" high!! I'm still hoping I can use the cutter as it will save me a lot of time!!

post #13 of 52

by my calculations your cake should be about a 25x15 ellipse and 7 inches tall give or take with 80 arches on each of three stories -- except for the ruins parts--if it was all intact that is

 

the arena in the middle should also be about 7" wide and maybe about 12" long for it to be to scale

 

but that's just my rough estimate

 

it was built at a 5-3 ratio and the height of the outside wall is the same as the width of the arena--the arena appears to be half the size of the width and length

 

 so if there were 80 arches hmmm...

the only way to see the rainbow is to look through the rain

 

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the only way to see the rainbow is to look through the rain

 

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post #14 of 52

so the 1/4 of the perimeter of the ellipse i drew with those dimensions is approx 17" so i'd just do one arch every inch and fudge it a teeny bit or make the ellipse a tad bit bigger to be able to get one quarter of it to measure 20" and do one arch per inch so maybe a 27x17 ellipse give or take and increase the height of the outside wall and the arena to 8.5 inches

 

that's a ton of teensy arches

 

i mean i don't think anybody is going to be counting them up--i mean who even knew there were 80 in the first place?

 

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

 

but if you need to make them to scale with a 2" arch then it's gonna be way freaking huge

 

so for example with the 5:3 ratio if it's a 13" outside wall height which is the same for the size of the arena then the length & width of the ellipse is 44 x26

 

that's quite a large colosseum ahahahhahahaa

 

this is so out of control!!! ;)

the only way to see the rainbow is to look through the rain

 

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the only way to see the rainbow is to look through the rain

 

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post #15 of 52
Thread Starter 
Thanks for all that!!! That's about where I ended up last night. I'm picking up the 12" cake pan today, and I'm not sure about using the arch cutter as it's so big. I'm not going to do it to scale, they're not paying me enough and I don't think the Walls will be high enough to make an impact. This is getting very complicated!!!!!!!!!!
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