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How To Make A Fault Line Cake (Divided Frosting Cake)
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Sep 6, 2024
In this tutorial I demonstrate how to make a fault line cake (divided frosting cake) to give the cake a 3D, carved out look! For this cake I use my 4 Minute Buttercream Frosting and you can watch the tutorial for how to make it, check the consistency and add other flavours here: https://youtu.be/MFKfXbnU1Lw For my tutorial on perfectly smooth frosting with sharp edges, click here: https://youtu.be/s2kDZue0Tig For my tutorial on sugar lollipops click here: https://youtu.be/J8JYeEykB5Q SUBSCRIBE to my channel for new cake decorating tutorials every week!
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0:00
Hi, I'm Emily of British Girl Bakes and I'm going to show you how to divide the frosting on a cake like this to give it a dimensional look
0:07
The tools you'll need are the same as for frosting a cake normally. You'll need a turntable, an offset spatula and a frosting smoother, a cloth or paper towels, and of course your frosting and your cake
0:20
I'm attaching my cake to the turn table with a ring of masking tape so it doesn't slide around
0:26
I've already crumcoated this cake and the next step is to give it a little bit of a little bit of a turntable with a ring of masking tape so it doesn't slide around. I've already crumb coated this cake and the next step is to give it
0:29
final coat of frosting and this will be the colour of the visible frosting in between
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the dimensional frosting on the top and bottom of the finished cake, which is white
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for this one. This final coat needs to completely cover up the cake so you can't see the
0:43
cake or filling through the frosting, at least on the areas where this colour will be
0:47
visible at the end. For my cake, the top of the cake and the top and bottom of the
0:52
sides of the cake are going to be covered with another colour of frosting and since I
0:57
don't want the frosting to be very thick, I'm going to leave the these parts of the cake with a thinner coat of frosting. You'll need to chill this coat of
1:05
frosting in the fridge for at least 30 minutes before you continue. While my cake is chilling
1:10
so that the frosting sets, I've coloured the buttercream I'm going to use for the rest of the
1:14
cake, and I've used sky blue gel colour by AmeriColor for this one, and Royal Blue for this one
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Now that the frosting on my cake is nice and firm, I can frost over it without blending the
1:26
colours together. I'm spreading this turquoise buttercream onto the top of the cake and
1:31
smoothing it out and then moving down to the sides For my tutorial on how to cover a cake with perfectly smooth buttercream click the link in the screen or in the description below I spreading the frosting all the way up above the top edge of the cake so I won have air pockets there later on
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and I'm intentionally spreading down to different levels all around the cake, so I'll eventually have a nice, uneven, jagged edge to this frosting
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I'm trying to apply the frosting the same thickness all over. Now I'm smoothing around the cake a few times with my frosting
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scraper and you can see that the bottom edge which was kind of wavy when I spread the
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buttercream on is now getting angular and jagged as I smooth it out. This is
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exactly the effect I want so it looks like the buttercream has been carved out of
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the cake. I'm touching up where there are indents in the frosting which is where
2:22
the buttercream isn't spread on as thickly as on the rest of the cake. Smoving again and
2:28
now I'm tidying up the top although leaving it uneven like this would look nice as
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well. If you're enjoying this tutorial please click the thumbs up button. Subscribe to
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my channel for a new cake decorating tutorial every week and if you enjoy them take a
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look at my online courses by clicking the link in the screen or in the description
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below. Smoving the sides again, touching up the top and when I'm happy with
2:57
the coverage I'm moving on to my next colour for the bottom of the cake. I'm
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spreading on right down to the bottom of the cake, so it goes all the way down to the cakeboard
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and going up varying heights to create the same irregular effect as the turquoise frosting
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Making sure I cover up all of the thinner areas of frosting so you can see any cake showing through the white frosting The closer together you make the two colours of frosting the more dramatic I think it looks I should mention that you can also do this technique with just one color
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For example, you could frost the final coat with turquoise all over the cake
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and then apply this dark blue just at the bottom, and that looks less dramatic and more elegant, I think
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This way is perfect for this cake, though, which is fun for a frozen or winter-themed cake
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and also a great masculine design. I'm smoothing the dark blue frosting
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going around several times, the frosting is about the same thickness as the turquoise frosting. And you can see I'm
3:49
angling my frosting scraper so that the base is slightly closer to the cake than at the top
3:53
Only slightly angled though, and this means I'm not touching the turquoise frosting
3:58
which is already nice and smooth. If you wanted to, you could instead first spread on the
4:03
turquoise and blue frosting, and then smooth the whole cake, smoothing both colours at the same time
4:08
so you'd only have to smooth it once. I'm not doing that because I don't want to blow it to blow it
4:15
the turquoise and blue frosting together as I scrape it off because I want to save the
4:19
excess frosting I scrape off and use it for other cakes. I can see some smudges of
4:26
the dark blue frosting on the white middle area of the cake so I'm using a damp paintbrush
4:30
to wipe the smudges off and this works because the white frosting has been chilled so it's firm
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and I won't be indenting it or damaging it with my paintbrush. You can stop at this point
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or you can chill the cake to set the frosting you've just applied and then after it
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at least 30 minutes when it's firm, you can use metallic paint to highlight the uneven edges of the frosting
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I'm using silver luster dust mixed with a drop of vodka, which creates a nice thick paint
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and I just mixed it together in the lid of the jar of the luster dust I starting with this wide flat brush which is quite stiff so it works well for painting only the edge of this buttercream whereas a softer brush would be more
5:06
flexible and would bend and curve more, so it would be more likely to smudge the silver paint
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onto the white frosting. I'm not only painting the very top edge of the frosting
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I'm also painting onto the first part of the side of the frosting, so it's more obvious
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Gold paint would look nice for this as well, or edible glitter would be really fun
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Where I get silver paint onto the white frosting, I'm using a damp paint brush it off
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I'm moving up to the top edge and starting with the same brush, but for this angle I found it easier to switch out to a smaller brush
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which is a bit more time consuming to use, but it lets me get into the tiny nooks and crannies of the edge
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without accidentally brushing the white frosting. When I finish the top edge, I'm going back to the bottom edge with a smaller brush to get into any little areas I missed with the bigger brush
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Back up to the top to thicken the silver lining in a few places so that it matches the bottom edge a bit better, and the frosting is finished
6:08
I topped this cake off with some homemade sprinkle lollipops to give it a bit more height and more of a wintry feel
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And if you're interested in a tutorial on those, please tell me in the comments below
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below. I love how this cake turned out, but also that this technique is so versatile. You
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can play around with the colours and either leave the edges plain or paint them with gold
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silver, pearl, glitter. There are so many possibilities. Thanks for watching! Subscribe to my
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channel for a new cake decorating tutorial every week
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