Latest / The Monégasque Table / How to Apply Edible Glitter to a Cake Without Wasting It
Transcript
- Margaux: A 7 gram jar of luster dust costs $9.99. That's $1.43 a gram — and most of the waste in this category happens in the 10 seconds between the brush leaving the jar and touching the cake. Dana: So the money isn't lost on the cake. It's lost in the air. Margaux: Welcome to The Monégasque Table. Today: how to actually get edible glitter onto a cake — the two methods, when each one is right, and why the powder behaves so differently between them. Dana: And I want the version for someone doing this on a paid order, not a Tuesday cupcake. Margaux: Here's the answer up front. There are two methods and they are not interchangeable. Dry brushing gives you a soft, diffused sheen and it's fast — you load a soft brush, tap the excess off, and swipe. Painting gives you coverage, edges and control — you put a small amount of dust in a dish, add a few drops of a clear high-proof spirit until it's the consistency of paint, and brush it on. Dry for sheen. Wet for anything that needs a line, a shape or a solid metallic face. Dana: Why does adding alcohol change it that much? It's the same powder. Margaux: Because of what the powder is. It's a mineral pigment, and it's thirsty — the technical sheet puts oil absorption on the gold luster dust at 70 to 90 grams per 100 grams of powder. That's a material that wants to be carried by something. Dry, each particle sits on the surface as its own tiny mirror, which is why you get sheen instead of color. Wet, they flow together into a film and you get a painted metallic. And the reason a high-proof clear spirit is the carrier and not water is that the pigment is almost insoluble in water — water sits on buttercream and sinks in, alcohol flashes off and leaves the pigment where you put it. Dana: Here's my round, and it's the one my accountant would ask. You just told me the answer is "it depends," and gave me two methods that both start with dipping a brush into an open jar of $1.43-a-gram powder. That's the waste. Neither method fixes it. So how does a person who does this for money stop paying for the air? Margaux: That's the round you win — and it's a workflow answer, not a product answer. Three things, and they're all free. First: never work out of the jar. Tap what you need into a small dish and close the jar, because the jar is the thing you're protecting. Second: tap the brush against the rim of that dish, not over the cake. What falls, falls back in the dish and goes back in the jar. The dust that goes past the cake and onto the board is gone. Third — and this is the one that actually moves the number — decide before you load the brush whether you're going dry or wet. People waste the most when they dry-brush, don't like it, and then go wet on top of it. That's two applications of powder for one finish. Dana: So the waste isn't technique. It's indecision. Margaux: On a paid order, mostly yes. And there's a fourth: nothing wet ever goes into the jar. A damp brush back into the jar is how a jar turns into a brick. Clumping in these powders is almost entirely a moisture problem, so the working dish exists partly so the jar never meets a wet brush. Dana: Buttercream versus fondant. Do they take it the same way? Margaux: No, and the difference is surface. Fondant is smooth and closed, so it takes both methods well and painting looks its best there — you can get a clean metallic face with an actual edge. Buttercream is soft and a little open, so it favors the dry brush: fluffy brush, light swipes, all in one session. That last part matters more than people expect. If you dry-brush half a tier, take a break and come back, the first half has settled differently and you can see the seam. Do a tier in one go. Dana: And which product goes on a cake in the first place? Because I keep hearing "dust" and "glitter" as if they're one thing. Margaux: They're two, and cakes want the dust. Luster dust is 5 to 25 microns — a very fine powder that lies flat on a surface and gives it a metallic sheen. Flake glitter runs 50 to 500 microns, and those are visible pieces; that size exists so it stays suspended in a drink rather than sinking. Put flakes on fondant and you get texture, not shine. Put dust in a cocktail and it mostly ends up as a film on the glass. The size is the whole spec. Dana: Does any of this survive an oven? Some of my work gets dusted before it bakes. Margaux: It survives. The pigment is heat-stable and chemically stable, it's acid and alkali resistant, and it's almost insoluble — so it doesn't scorch, doesn't bleed into a glaze, and doesn't change the taste. It's odorless. That last one is the reason people use it on wedding cakes at all: it adds nothing to the flavor of something a client has paid a lot of money to taste a certain way. Dana: Clients ask what's in it. What do I tell them? Margaux: You hand them the jar. The ingredient list is printed on the label, and that is genuinely the strongest thing you can do — it's what the FDA's own guidance points people to. The agency advises avoiding glitter and dust products on food unless they're specifically manufactured to be edible, and its test is blunt: if a label says only "non-toxic" or "for decorative purposes only" and carries no ingredient list, that product shouldn't go on food. It also lists the names to watch for — luster dust, disco dust, twinkle dust, sparkle dust, highlighter, shimmer powder, pearl dust, petal dust. In this category, missing ingredient information causes more than 66 percent of the complaints people raise about ingredients. A printed list answers the question before it's asked. Dana: Who should skip all of this? Margaux: If you're finishing a cake that's going to sit in a warm room under a dome for hours, painting is the wrong call — the wet method wants to dry properly, and a humid box is where a beautiful metallic face goes dull. Dry brush it instead. If you're working on a whipped or very soft frosting that moves when you touch it, skip the brush entirely — a brush drags. And if your design has no smooth surface anywhere on it, skip the dust and use flakes, or skip both. Dana: Dana's Scorecard. Started at "surely you just shake it on." Ending somewhere more expensive-sounding and cheaper in practice. Two methods: dry brush for sheen, and dust mixed with a few drops of clear high-proof spirit for coverage and edges — because the pigment is thirsty and almost insoluble in water. Fondant takes paint, buttercream takes the dry brush, and a tier gets done in one session or it shows a seam. Waste control is a dish, a rim to tap on, deciding before you load, and never a wet brush in the jar. Dust is 5 to 25 microns for cakes, flakes are 50 to 500 microns for drinks. Caveat I'm keeping: in a warm humid box, don't paint. Margaux: Footnote. The MONÉGASQUE Gold 7 gram luster dust is on Amazon at $9.99 — full ingredient list printed on the jar, from a line that's shipped over 400,000 orders across the US, Canada and the UK. Check the listing for current pricing. Dana: Next time, something a listener asked and I've genuinely wondered about. Star-shaped edible glitter. Every search for it turns up something — but is it glitter at all, or is it a completely different product with better marketing? Margaux: Short answer involves the word "sugar," and we'll do it properly. This show is produced by the team at Monégasque, with AI-crafted hosts, and every number you heard was checked by humans against the documents. See you at the table.