Icing Or Fondant Birthday Cakes Are Popular In Brisbane?

5 min read

A cake decorator's bench with a buttercream cake on a turntable, rolled fondant and piping bags, 3D papercraft illustration

There is one question we ask before anything else when somebody orders a birthday cake, and it decides almost everything that follows: buttercream or fondant?

Most people have a vague preference and no idea why. So here is the honest version from the bench — what each one actually is, what it can and cannot do, how it behaves in a Brisbane summer, and which one your guests will still be eating at the end of the afternoon.

A two-tier birthday cake with smooth buttercream sides, a piped shell border and lit candles, 3D papercraft illustration

Two cakes side by side comparing soft swirled buttercream against a smooth matte fondant shell, 3D papercraft illustration

The Icing Birthday Cake

Icing here means buttercream: butter and icing sugar beaten together, sometimes with a little milk, coloured and spread or piped straight onto the cake.

Its advantage is that it tastes like something. Buttercream is part of the eating rather than a layer people scrape onto the side of the plate, and a cake finished in it looks handmade in the way a cake ought to.

Its limits are equally clear. Buttercream cannot hold a sharp edge, cannot carry a printed image, and softens in heat — which in Brisbane between November and March is a real consideration, not a theoretical one. It also shows every fingerprint, so it does not travel as forgivingly.

The heat point deserves a number rather than a warning. Buttercream is comfortable up to about twenty-five degrees and starts to lose its edge above that. A cake sitting in a car at midday in February is well past it, which is why we would rather deliver a buttercream cake than hand it over at the counter on a hot day.

There is a variation worth knowing about if heat is your problem but you still want the taste. Swiss meringue buttercream is made by warming egg whites and sugar before whipping in the butter, and it holds up noticeably better in warm rooms than the simple icing-sugar version. It is less sweet too, which most adults prefer.

Printed images, patterns and bright colour

A round birthday cake being iced by hand, a palette knife smoothing pale buttercream around the side, 3D papercraft illustration

Where buttercream genuinely wins is print and pattern. Because the surface takes an edible printed sheet cleanly, the detailed cakes people ask for by name are almost all icing cakes underneath — like the Minecraft cake, where the whole point is a crisp image rather than a sculpted shape.

A Minecraft birthday cake with a printed icing top, made at Mr T's Bakery in Brisbane

The same is true of pattern work. The Dog Prints Purple Cake is a good example of what icing does well — soft colour, a repeated motif, nothing that needs a hard edge to look right.

A purple birthday cake decorated with a repeating dog-print pattern, made at Mr T's Bakery

Not everything has to be busy. A Black and White Cake is the one adults order for other adults, and it shows how far a restrained finish goes when the piping is clean.

A square black and white birthday cake with clean piped detail, made at Mr T's Bakery

Where a single feature carries the cake, buttercream keeps it soft rather than stiff — the Round Purple with Butterfly Cake being the version people ask for most often.

A round purple birthday cake topped with a butterfly decoration, made at Mr T's Bakery

And colour is where icing is simply better than fondant. A Rainbow cake in buttercream reads bright and edible; the same bands in fondant read like plastic.

A rainbow striped birthday cake finished in bright buttercream, made at Mr T's Bakery

The exception that proves the rule is a licensed print. A Star Wars cake lives or dies on the sharpness of the image, and that is a printed icing sheet doing the work rather than any amount of hand piping.

A Star Wars birthday cake with a printed icing top, made at Mr T's Bakery in Brisbane

Fond of Fondant Cake

Fondant is a sugar dough. It is rolled out into a sheet, laid over a cake that has already been crumb-coated, then smoothed down and trimmed at the base.

What it gives you is a surface nothing else can: perfectly flat, matte, seamless, and capable of a genuinely sharp top edge. Anything sculpted, tiered, or built to look like an object rather than a cake is fondant, because no other finish will hold the shape.

What people rarely realise is that there is buttercream under there anyway. A fondant cake is crumb-coated first — a thin layer of buttercream that glues the crumbs down and gives the sugar sheet something smooth to sit against. Skip it and the fondant shows every bump underneath, so the two finishes are less rivals than layers.

A sheet of pale fondant being rolled out flat beside a cake waiting to be covered, 3D papercraft illustration

It is also the more robust choice in every practical sense. Fondant travels well, survives a warm car, does not mark when it is handled, and holds a decoration in place for hours — which is why the cakes that have to sit on a table all afternoon tend to be covered in it.

A hand smoothing the top edge of a fondant-covered cake with a paper smoother, 3D papercraft illustration

The honest drawback: most people do not eat it. Fondant is sweet in a flat, one-note way, and the usual fate of a fondant cake is a table of slices with a pale sheet peeled off and pushed to the side. If that bothers you, ask for it thin and make sure there is good buttercream underneath.

The other thing to know is that fondant hates the fridge. Cold makes it sweat, and a cake taken out of a fridge into a Brisbane afternoon will bead with moisture and go tacky within minutes. Keep a fondant cake in a box in a cool room instead, and take the lid off only when it is going on the table.

Despite All the Sweetness

So, which one? Choose by the job rather than the taste.

Choose buttercream if the cake is being eaten within a couple of hours, if it is going straight from a fridge to a table, if the decoration is a printed image or a pattern, or if you simply want it to taste as good as it looks.

Choose fondant if it needs a sculpted shape, a sharp edge or tiers, if it has to sit out at a party for hours, or if it is travelling any real distance in a Brisbane summer.

There is a middle option nobody asks for and most people would prefer: a buttercream cake with a few fondant pieces on top. You get the shape where you need it and the taste everywhere else, and no one has to peel anything off.

What to settle before you order

While you are deciding, settle the size at the same time. People almost always order by how big the cake looks rather than by how many are coming, and a decorated cake is usually cut into smaller pieces than a home one. A six-inch round is about twelve party slices, an eight-inch is around twenty, and a ten-inch will do thirty-five if somebody sensible is holding the knife.

Three questions save every awkward conversation later: how many people, what time is it being cut, and is anyone at the table gluten free or dairy free. The last one changes which cake we bake rather than which icing goes on it, so it is the one worth mentioning first rather than at pick-up.

A finished birthday cake boxed in a kraft cake box with tissue tucked around the base, 3D papercraft illustration

Whichever you land on, order it earlier than feels necessary. A decorated cake needs two to three business days with us, because colour has to be mixed, fondant has to rest and every piped detail is done by hand in our Fortitude Valley kitchen.

Have a look through what we make here, and if you cannot see the one in your head, ring us and describe it. Nearly every cake we are proudest of started as somebody trying to explain something over the phone.

Annie Nguyen
Annie Nguyen

Annie is the Content Copywriter for Mr T’s Bakery. We make Brisbane business catering easy. With endless variety, exciting menus and an easy to use online platform, keep everyone on track with great food! Placing orders online just in minutes.

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